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PartsTable / COMPONENT / A156.4 TYPE C02012 GRADE 1
A156.4 TYPE C02012 GRADE 1 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The A156.4 TYPE C02012 GRADE 1 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-481-8637, 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
A156.4 TYPE C02012 GRADE 1
NSN: 5340-01-481-8637
FSC: 5340
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
Part NumberA156.4 TYPE C02012 GRADE 1
NSN5340-01-481-8637
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A156.4 TYPE C02012 GRADE 1 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CONTROL TYPE: SPRING
TECHNICAL CHARACTERISTICS (FLIS)
CONTROL TYPESPRING
SPECIAL FEATURESDORMA NO.7605, SPRING LOADED
END ITEM IDENTIFICATIONDOOR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
F90H217Upgraded Successor
successor cross-reference
successor
90-8-20-43-LTUpgraded Successor
successor cross-reference
successor
7605Upgraded Successor
successor cross-reference
successor
BHMA-A156.4 C02012 SIZE 2Interchangeable
interchangeable cross-reference
interchangeable
FF-H-121Interchangeable
interchangeable cross-reference
interchangeable
BHMA-A156.4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A156.4 TYPE C02012 GRADE 1?
A156.4 TYPE C02012 GRADE 1 is a A156.4 TYPE C02012 GRADE 1.
What parts can replace A156.4 TYPE C02012 GRADE 1?
There are 23 known substitutes for A156.4 TYPE C02012 GRADE 1: F90H217, 90-8-20-43-LT, 7605 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A156.4 TYPE C02012 GRADE 1?
A156.4 TYPE C02012 GRADE 1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-481-8637. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026