PartsTable
Technical Data Sheet
Download PDF

MIL-STD-421 — PARTS KIT,BRAKE AIR COMPRESSOR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

MIL-STD-421: PARTS KIT,BRAKE AIR COMPRESSOR.

The PARTS KIT,BRAKE AIR COMPRESSOR is a the manufacturer industrial component. Key specifications include material: STEEL, effective_length: 1.5000 FEET NOMINAL FT, pin_fastening_method: RIVETED, first_chain_link_style: PIN, nominal_pitch_distance: 0.250 INCHES IN, second_chain_link_style: ROLLERLESS. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-074-7086, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MIL-STD-421
NSN: 3020-00-074-7086
NIINs: 000747086, 000973090, 001926802, 001961760, 001961764, 002008088, 002222665, 002233369, 002318701, 002318703, 002318711, 002318731, 002318741, 002398231, 002406736, 002406737, 002440306, 002473528, 002508019, 002527360, 002550692, 002557204, 002561499, 002671253, 002694099, 002733309, 002734264, 004037140, 004675202, 004675204, 005411384, 005556969, 007721907, 007721909, 009650082
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL
effective_length1.5000 FEET NOMINAL FT
link_row_quantity1
pin_fastening_methodRIVETED
first_chain_link_stylePIN
nominal_pitch_distance0.250 INCHES IN
second_chain_link_styleROLLERLESS
minimum_tensile_strength780 POUNDS PER SQUARE INCH LBS
first_chain_link_plate_width0.205 INCHES NOMINAL IN
second_chain_link_plate_width0.237 INCHES NOMINAL IN
first_chain_link_pin_nominal_diameter0.0900 INCHES IN
first_chain_link_plate_nominal_thickness0.0300 INCHES IN
NSN3020-00-074-7086
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PARTS KIT,BRAKE AIR COMPRESSOR TITLE COMPONENT PN MIL-STD-421 MFR PARTS KIT,BRAKE AIR CO
KEY FEATURES
•
SECOND CHAIN LINK PIN NOMINAL DIAMETER: 0.0905 INCHES IN
•
SECOND CHAIN LINK PLATE NOMINAL THICKNESS: 0.0300 INCHES IN
•
FIRST CHAIN LINK ROLLER NOMINAL DIAMETER: 0.1300 INCHES IN
•
SECOND CHAIN LINK STYLE: PIN
•
EFFECTIVE LENGTH: 2.0208 FEET NOMINAL FT
•
SECOND CHAIN LINK NOMINAL WIDTH BETWEEN PLATES: 0.1250 INCHES IN
•
FIRST CHAIN LINK STYLE: ROLLER
•
FIRST CHAIN LINK PLATE WIDTH: 0.238 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SECOND CHAIN LINK PIN NOMINAL DIAMETER0.0905 INCHES IN
SECOND CHAIN LINK PLATE NOMINAL THICKNESS0.0300 INCHES IN
FIRST CHAIN LINK ROLLER NOMINAL DIAMETER0.1300 INCHES IN
SECOND CHAIN LINK STYLEPIN
EFFECTIVE LENGTH2.0208 FEET NOMINAL FT
SECOND CHAIN LINK NOMINAL WIDTH BETWEEN PLATES0.1250 INCHES IN
FIRST CHAIN LINK STYLEROLLER
FIRST CHAIN LINK PLATE WIDTH0.238 INCHES NOMINAL IN
PIN FASTENING METHODRIVETED AND SPRING CLIP
SECOND CHAIN LINK PLATE WIDTH0.205 INCHES NOMINAL IN
OTHER ITEMS IN FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3020-00-000-0091 3020-00-001-0027 3020-00-001-0028 3020-00-001-0063 3020-00-001-0064 3020-00-001-0066 3020-00-001-0071 3020-00-001-0072
SUBSTITUTES & CROSS-REFERENCES 1
25-1RCAReference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy MIL-STD-421?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MIL-STD-421?
MIL-STD-421 is a PARTS KIT,BRAKE AIR COMPRESSOR.
What parts can replace MIL-STD-421?
There is 1 known substitute for MIL-STD-421: 25-1RCA. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-STD-421?
MIL-STD-421 is cataloged in the U.S. Government catalog under NSN 3020-00-074-7086. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MIL-STD-421

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.