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Primary and secondary balances

Primary and secondary balances, Total:94 items.

In the international standard classification, Primary and secondary balances involves: Aerospace fluid systems and components, Education, Freight distribution of goods, Materials for aerospace construction, Coatings and related processes used in aerospace industry, Fasteners for aerospace construction, Non-ferrous metals, Road engineering, Valves, Fasteners, Farming and forestry, Pipeline components and pipelines.

Professional Standard - Aviation, Primary and secondary balances

HB 1-124-1974 Two-level accuracy (dd) one side cut flat cylinder head bolts
HB 1-122-1974 Two-level precision (db) one side cut flat cylinder head bolts
HB 1-123-1974 Two-level accuracy (dc) one side cut flat cylindrical head bolts

CZ-CSN, Primary and secondary balances

CSN 17 7010-1974 Balance with non-automatic function of accuracy class 1 to 4. Basic metrological regulations

European Association of Aerospace Industries, Primary and secondary balances

AECMA PREN 2680-1987 Aerospace Series Nuts, Anchor, Self Locking, Two Lug, Floating, Self Aligning Classification : 900 MPa/235 Degrees Celsius Issue P 1
AECMA PREN 2852-1987 Aerospace Series Nuts, Hexagonal, Plain, Normal Height, Normal Across Flats, Heat Resisting Steel Passivated Classification: 1100 MPa/650 Degrees Celsius Issue P 1
AECMA PREN 2649-1994 Aerospace Series Screws, Pan Head, Slotted, Threaded to Head, in Alloy Steel, Cadmium Plated Classification : 900 MPa (at Ambient Temperature) / 235 Degrees C Edition P 2
AECMA PREN 4139-1994 Aerospace Series Screws, Pan Head, Offset Cruciform Recess, Threaded to Head, in Alloy Steel, Cadmium Plated Classification: 1 100 MPa (at Ambient Temperature)/235 Degrees C Edition P1
AECMA PREN 4139-1993 Aerospace Series Screws, Pan Head, Offset Cruciform Recess, Threaded to Head, in Alloy Steel, Cadmium Plated Classification: 1 100 MPa (at Ambient Temperature)/ 235 Degrees Celsius Edition 1
AECMA PREN 2680-1996 Aerospace Series Nuts, Anchor, Self Locking, Floating, Self- Aligning, Two Lug, in Alloy Steel, Cadmium Plated, MoS2 Lubricated Classification : 900 MPa (at Ambient Temperature) / 235 Degrees Celsius Issue P 2
AECMA PREN 2680-1998 Aerospace Series Nuts, Anchor, Self Locking, Floating, Self- Aligning, Two Lug, in Alloy Steel, Cadmium Plated, MoS2 Lubricated Classification: 900 MPa (at Ambient Temperature) / 235 Degrees Celsius Edition P 3
AECMA PREN 2876-1995 Aerospace Series Nuts, Hexagon, Plain, Reduced Height, Normal Across Flats, in Aluminium Alloy, Anodized Classification : 450 MPa (at Ambient Temperature)/ 120 Degrees C
AECMA PREN 2895-1993 Aerospace Series Nuts, Hexagonal, Plain, Normal Height, Normal Across Flats, in Corrosion Resisting Steel, Passivated Classification : 900 MPa (at Ambient Temperature) / 425 Degrees C Edition P 1
AECMA PREN 4161-1993 Aerospace Series Screws, Pan Head, Offset Cruciform Recess, Coarse Tolerance Normal Shank, Long Thread, in Alloy Steel, Cadmium Plated Classification: 1 100 MPa (at Ambient Temperature) / 235 Degrees Celsius Edition 1
AECMA PREN 4161-1994 Aerospace Series Screws, Pan Head, Offset Cruciform Recess, Coarse Tolerance Normal Shank, Long Thread, in Alloy Steel, Cadmium Plated Classification: 1 100 MPa (at Ambient Temperature)/235 Degrees C Edition P1
AECMA PREN 4138-1993 Aerospace Series Screws, Pan Head, Offset Cruciform Recess, Coarse Tolerance Normal Shank, Medium Length Thread, in Alloy Steel, Cadmium Plated Classification: 1 100 MPa (at Ambient Temperature) / 235 Degrees Celsius Edition 1
AECMA PREN 4138-1994 Aerospace Series Screws, Pan Head, Offset Cruciform Recess, Coarse Tolerance Normal Shank, Medium Length Thread, in Alloy Steel, Cadmium Plated Classification: 1 100 MPa (at Ambient Temperature)/235 Degrees C Edition P1

Group Standards of the People's Republic of China, Primary and secondary balances

T/TJUAV 0001.1-2020 Tianjin Youth UAV Aviation Technology (Technical Level) Rating Application Standard
T/SCA 019-2021 Specifications of subscriber access and identification management for secondary-level node platform of freight container

European Committee for Standardization (CEN), Primary and secondary balances

EN 2651:1996 Aerospace series - Screws, pan head, slotted, threaded to head, in brass, tin plated - Classification: 380 MPa (at ambient temperature)/80 °C
EN 2649:1995 Aerospace series - Screws, pan head, slotted, threaded to head, in alloy steel, cadmium plated - Classification: 900 MPa (at ambient temperature)/235 °C
EN 2650:1996 Aerospace series - Screws, pan head, slotted, threaded to head, in corrosion resisting steel, passivated - Classification: 600 MPa (at ambient temperature)/425 °C
EN 2886:1996 Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in alloy steel, cadmium plated - Classification: 900 MPa (at ambient temperature)/235 °C
EN 3227:2010 Aerospace series - Nuts@ hexagonal@ plain@ normal height@ normal across flats@ in steel@ cadmium plated@ left hand thread - Classification: 1 100 MPa (at ambient temperature) / 235 ��
EN 3226:2009 Aerospace series - Nuts, hexagon, plain, normal height, normal across flats, steel, cadmium plated - Classification: 1100 MPa/235 °C
EN 4069:1996 Aerospace series - Nuts, hexagon, plain, reduced height, reduced across flats, in heat resisting steel, passivated - Classification: 600 MPa (at ambient temperature)/650 °C
EN 2884:1996 Aerospace series - Screws, pan head, offset cruciform recess, coarse tolerance normal shank, short thread, in titanium alloy, anodized, MoS2 lubricated - Classification: 1100 MPa (at ambient temperature)/315 °C
EN 4138:2016 Aerospace series - Screws@ pan head@ offset cruciform recess@ coarse tolerance normal shank@ medium length thread@ in alloy steel@ cadmium plated - Classification: 1 100 MPa (at ambient temperature) / 235 ��
EN 4073:2009 Aerospace series - Screws, pan head, six lobe recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated - Classification 1 100 MPa (at ambient temperature) / 235 degree C
EN 4073:2016 Aerospace series - Screws@ pan head@ hexalobular recess@ coarse tolerance shank@ medium length thread@ in alloy steel@ cadmium plated - Classification: 1 100 MPa (at ambient temperature) / 235 ��
EN 4138:2009 Aerospace series - Screws, pan head, offset cruciform recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated - Classification : 1 100 MPa (at ambient temperature) / 235 degree C
EN 3759:1996 Aerospace series - Screws, pan head, offset cruciform recess, threaded to head, in heat and corrosion resisting steel, passivated - Classification: 1100 MPa (at ambient temperature)/425 °C
EN 3037:1996 Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, MoS2 lubricated - Classification: 1100 MPa (at ambient temperature)/315 °C
EN 3038:1996 Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated - Classification: 1100 MPa (at ambient temperature)/425 °C
EN 12560-4:2001 Flanges and Their Joints - Gaskets for Class-Designated Flanges - Part 4: Corrugated, Flat or Grooved Metallic and Filled Metallic Gaskets for Use with Steel Flanges

German Institute for Standardization, Primary and secondary balances

DIN EN 2651:1996 Aerospace series - Screws, pan head, slotted, threaded to head, in brass, tin plated - Classification: 380 MPa (at ambient temperature)/80 °C; German version EN 2651:1996
DIN EN 2650:1996 Aerospace series - Screws, pan head, slotted, threaded to head, in corrosion resisting steel, passivated - Classification: 600 MPa (at ambient temperature)/425 °C ; German version EN 2650:1996
DIN EN 2885:1996 Aerospace series - Screws, pan head, offset cruciform recess, coarse tolerance normal shank, short thread, in alloy steel, cadmium plated, classification: 900 MPa (at ambient temperature)/235 °C; German version EN 2885:1996
DIN EN 4069:1996 Aerospace series - Nuts, hexagon, plain, reduced height, reduced across flats, in heat resisting steel, passivated - Classification: 600 MPa (at ambient temperature)/650 °C; German version EN 4069:1996
DIN EN 2897:1996 Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in alloy steel, cadmium plated - Classification: 1100 MPa/235 °C; German version EN 2897:1996
DIN EN 2886:1996 Aerospace series - Screws, pan head, offset cruciform recess, close tolerance shank, short thread, in alloy steel, cadmium plated - Classification: 900 MPa/235 °C; German version EN 2886:1996
DIN EN 2884:1996 Aerospace series - Screws, pan head, offset cruciform recess, coarse tolerance normal shank, short thread, in titanium alloy, anodized, MoS<(Index)2> lubricated, classification: 1100 MPa (at ambient temperature)/315 °C; German version EN 2884:1996
DIN EN 3759:1996 Aerospace series - Screws, pan head, offset cruciform recess, threaded to head, in heat and corrosion resisting steel, passivated - Classification: 1100 MPa (at ambient temperature)/425 °C; German version EN 3759:1996
DIN EN 3038:1996 Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated - Classification: 1100 MPa (at ambient temperature)/425 °C; German version EN 3038:1996
DIN EN 3037:1996 Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized MoS<(Index)2> lubricated - Classification: 1100 MPa(at ambient temperature)/315 °C; German version EN 3037:1996
DIN EN 3307:1996 Aerospace series - Screws, pan head, offset cruciform recess, threaded to head, in titanium alloy, anodized, MoS<(Index)2> lubricated - Classification: 1100 MPa (at ambient temperature)/315 °C; German version EN 3307:1996
DIN EN 2924:2019 Aerospace series - Nuts, hexagon, plain, reduced height, reduced across flats, in heat resisting steel, silver plated, left hand thread - Classification: 600 MPa (at ambient temperature)/425 ？C; German and English version EN 2924:2019
DIN EN 12560-4:2001-04 Flanges and their joints - Gaskets for class-designated flanges - Part 4: Corrugated, flat or grooved metallic and fillet metallic gaskets for use with steel flanges; German version EN 12560-4:2001
DIN EN 3226:2009 Aerospace series - Nuts, hexagon, plain, normal height, normal across flats, steel, cadmium plated - Classification: 1100 MPa / 235 °C; German and English version EN 3226:2009
DIN EN 4138:2010 Aerospace series - Screws, pan head, offset cruciform recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature)/235 °C; German and English version EN 4138:2009

British Standards Institution (BSI), Primary and secondary balances

BS EN 3226:2010 Aerospace series. Nuts, hexagon, plain, normal height, normal across flats, steel, cadmium plated. Classification: 1100 MPa/235C
BS EN 3226:2009 Aerospace series - Nuts, hexagon, plain, normal height, normal across flats, steel, cadmium plated - Classification: 1100 MPa/235 °C
BS EN 3228:2010 Aerospace series - Nuts, hexagonal, plain, reduced height, normal across flats, in steel, cadmium plated - Classification: 900 MPa (at ambient temperature)/235 °C
BS EN 3229:2010 Aerospace series. Nuts, hexagonal, plain, reduced height normal across flats, in steel, cadmium plated, left hand thread. Classification: 900 MPa (at ambient temperature)/235°C
BS EN 3229:2009 Aerospace series - Nuts, hexagonal, plain, reduced height, normal across flats, in steel, cadmium plated, left hand thread - Classification: 900 MPa (at ambient temperature)/235 °C
BS EN 4161:2010 Aerospace series - Screws, pan head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated - Classification: 1100 MPa (at ambient temperature) / 235 °C
BS EN 4161:2009 Aerospace series - Screws, pan head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated - Classification: 1100 MPa (at ambient temperature) / 235 °C
BS EN 3227:2010 Aerospace series - Nuts, hexagonal, plain, normal height, normal across flats, in steel, cadmium plated, left hand thread - Classification: 1100 MPa (at ambient temperature)/235 °C
BS EN 4073:2009 Aerospace series - Screws, pan head, six lobe recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated - Classification 1100 MPa (at ambient temperature) / 235 °C
BS EN 4073:2010 Aerospace series. Screws, pan head, six lobe recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated. Classification 1100 MPa (at ambient temperature) / 235°C
BS EN 4497:2006 Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating - Classification: 1 100 MPa (at ambient temperature) / 315 °C
BS EN 4497:2005 Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating - Classification: 1 100 MPa (at ambient temperature) / 315 °C

Association Francaise de Normalisation, Primary and secondary balances

NF L24-508*NF EN 4069:1996 Aerospace series. Nuts, hexagon, plain, reduced height, reduced across flats, in heat resisting steel, passivated. Classification : 600 MPa (at ambient temperature) / 650 degrees celsius.
NF L24-179*NF EN 2649:1995 Aerospace series. Screws, pan head, slotted, threaded to head, in alloy steel, cadmium plated. Classification : 900 MPa (at ambient temperature) 235 degrees celsius.
NF L24-182*NF EN 2884:1996 Aerospace series. Screws, pan head, offset cruciform recess, coarse tolerance normal shank, short thread, in titanium alloy, anodized, MOS2 lubricated. Classification : 1 100 MPa (at ambient temperature) / 315 degrees celsius.
NF L24-183*NF EN 2885:1996 Aerospace series. Screws, pan head, offset cruciform recess, coarse tolerance normal shank, short thread, in alloy steel, cadmium plated. Classification : 900 MPa (at ambient temperature) / 235 degrees celsius.
NF L24-189*NF EN 3759:1997 Aerospace series. Screws, pan head, offset cruciform recess, threaded to head, in heat and corrosion resisting steel, passivated. Classification : 1100 MPa (at ambient temperature) / 425 degrees celsius.
NF P98-219-5:1996 Test relating to pavement. Eveness test. Part 5 : measurement of a deformation class by moving a 1,50 M rule.
NF L24-178*NF EN 3912:2007 Aerospace series - Bolts, pan head, six lobe recess, relieved shank, long thread, in heat resisting steel FE-PA2601 (FE-PA92HT, A286), silver plated - Classification : 1 100 MPa (at ambient temperature)/650 oC
NF L24-188*NF EN 3307:1997 Aerospace series. Screws, pan head, offset cruciform recess, threaded to head, in titanium alloy, anodized, MoS2 lubricated. Classification : 1100 MPa (at ambient temperature) / 315 degrees celsius.
NF L24-174*NF EN 4073:2016 Aerospace series - Screws, pan head, hexalobular recess, coarse tolerance shank, medium length thread, in alloy steel, cadmium plated - Classification : 1 100 MPa (at ambient temperature)/235 oC
NF L24-187*NF EN 3038:1997 Aerospace series. Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated. Classification : 1100 MPa (at ambient temperature) / 425 degrees celsius.
NF L24-186*NF EN 3037:1997 Aerospace series. Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, MoS2 lubricated. Classification : 1100 MPa (at ambient temperature) / 315 degrees celsius.
NF E29-901-4*NF EN 12560-4:2001 Flanges and their joints - Gaskets for Class-designated flanges - Part 4 : corrugated, flat or grooved metallic and filled metallic gaskets for use with steel flanges

(U.S.) Ford Automotive Standards, Primary and secondary balances

FORD WSS-M4C50-E-2011 GASOLINE, PREMIUM UNLEADED, TIER 2 (Sea Level) EXHAUST AND EVAPORATIVE EMISSION TEST ***TO BE USED WITH FORD WSS-M99P1111-A***

SAE - SAE International, Primary and secondary balances

SAE AIR5667-2009 Fiber Optic Wavelength Division Multiplexed (WDM) Singlemode Interconnect and Component Standards Mapping for Aerospace Platform Applications – Device Level Specification

ASD-STAN - Aerospace and Defence Industries Association of Europe - Standardization, Primary and secondary balances

PREN 2921-1994 Aerospace Series Nuts@ Hexagon@ Thin@ Reduced Across Flats@ Heat Resisting Steel@ Passivated Classification : 900 MPa / 650 Degrees C
PREN 2810-1987 Aerospace Series Nuts@ Hexagon@ Slotted/Castellated@ Thin Normal Across Flats@ in Heat Resisting Steel Passivated Classification: 600 MPa/650 Degrees Celsius (Issue P 1)

未注明发布机构, Primary and secondary balances

DIN EN 4847:2022 Aerospace – Flat head spiral drive screw, coarse shank tolerance, medium thread length, alloy steel, cadmium plated – Class: 1 100 MPa (at room temperature)/235°C

International Telecommunication Union (ITU), Primary and secondary balances

ITU-R RA.1513-1 FRENCH-2003 Levels of data loss to radio astronomy observations and percentage-of-time criteria resulting from degradation by interference for frequency bands allocated to the radio astronomy on a primary basis Question ITU-R 227/7
ITU-R RA.1513-1 SPANISH-2003 Levels of data loss to radio astronomy observations and percentage-of-time criteria resulting from degradation by interference for frequency bands allocated to the radio astronomy on a primary basis Question ITU-R 227/7

Danish Standards Foundation, Primary and secondary balances

DS/EN 2885:1996 Aerospace series - Screws, pan head, offset cruciform recess, coarse tolerance normal shank, short thread, in alloy steel, cadmium plated - Classification: 900 MPa (at ambient temperature)/235 °C
DS/EN 2897:1997 Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature)/235°C
DS/EN 2809:2001 Aerospace series - Nuts, hexagon, slotted/castellated, reduced height, normal across flats, in heat resisting steel, silver plated - Classification 900 MPa (at ambient temperature)/650°C
DS/EN 3725:2005 Aerospace series - Screws, pan head, six lobe recess, normal shank, long thread, in titanium alloy TI-P64001, anodized, MoS2 coated - Strength class: 1100 MPa (at ambient temperature)
DS/EN 4073:2009 Aerospace series - Screws, pan head, six lobe recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated - Classification 1 100 MPa (at ambient temperature) / 235 °C
DS/EN 3038:1997 Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated - Classification: 1 100 MPa (at ambient temperature)/425°C

Lithuanian Standards Office , Primary and secondary balances

LST EN 2885-2001 Aerospace series - Screws, pan head, offset cruciform recess, coarse tolerance normal shank, short thread, in alloy steel, cadmium plated - Classification: 900 MPa (at ambient temperature)/235 °C
LST EN 3725-2005 Aerospace series - Screws, pan head, six lobe recess, normal shank, long thread, in titanium alloy TI-P64001, anodized, MoS2 coated - Strength class: 1 100 MPa (at ambient temperature)
LST EN 4073-2010 Aerospace series - Screws, pan head, six lobe recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated - Classification 1 100 MPa (at ambient temperature) / 235 °C
LST EN 3038-2001 Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated - Classification: 1 100 MPa (at ambient temperature)/425 °C

Aerospace, Security and Defence Industries Association of Europe (ASD), Primary and secondary balances

ASD-STAN PREN 4075-1994 Aerospace Series Screws, Pan Head, Offset Cruciform Recess, Threaded to Head, in Corrosion Resisting Steel, Passivated Classification : 490 MPa (at Ambient Temperature)/425 Degrees C (Edition P1)

CEN - European Committee for Standardization, Primary and secondary balances

EN 2868:2019 "Aerospace series - Nuts@ hexagonal@ slotted/castellated@ normal height@ normal across flats@ in heat resisting steel@ silver plated - Classification: 1 100 MPa (at ambient temperature)/650 °C,"

Xinjiang Provincial Standard of the People's Republic of China, Primary and secondary balances

DB65/T 4167-2018 Test method for average diameter, length and distribution of wool and other animal fibers