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Technical Data Sheet
PartsTable / COMPONENT / A156.4 TYPE C02 012 SIZE 3
A156.4 TYPE C02 012 SIZE 3 ✓ 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 C02 012 SIZE 3 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-000-0058, 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 C02 012 SIZE 3
NSN: 5340-00-000-0058
FSC: 5340
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part NumberA156.4 TYPE C02 012 SIZE 3
NSN5340-00-000-0058
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A156.4 TYPE C02 012 SIZE 3 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
•
MOUNTING TYPE FOR WHICH DESIGNED: SURFACE
•
OPERATIONAL DIRECTION: LEFT-HAND OR RIGHT-HAND
•
CONTROL TYPE: LIQUID
•
UNIT TYPE: SINGLE ACTION
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING TYPE FOR WHICH DESIGNEDSURFACE
OPERATIONAL DIRECTIONLEFT-HAND OR RIGHT-HAND
CONTROL TYPELIQUID
SPECIAL FEATURESNONGOVERNMENT DOCUMENT DATA:80204-A156.4
UNIT TYPESINGLE ACTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
FF-H-121Upgraded Successor
successor cross-reference
successor
BHMA-A156.4 C02012 SIZE 5Upgraded Successor
successor cross-reference
successor
BHMA-A156.4Upgraded Successor
successor cross-reference
successor
A156.4 TYPE C02012 SIZE 4Upgraded Successor
successor cross-reference
successor
A-A-1926Upgraded Successor
successor cross-reference
successor
K740/ALUpgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A156.4 TYPE C02 012 SIZE 3?
A156.4 TYPE C02 012 SIZE 3 is a A156.4 TYPE C02 012 SIZE 3.
What parts can replace A156.4 TYPE C02 012 SIZE 3?
There are 13 known substitutes for A156.4 TYPE C02 012 SIZE 3: FF-H-121, BHMA-A156.4 C02012 SIZE 5, BHMA-A156.4 and 10 more. Substitute compatibility should be verified for your specific system.
Is A156.4 TYPE C02 012 SIZE 3 still available?
A156.4 TYPE C02 012 SIZE 3 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026