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Technical Data Sheet
PartsTable / COMPONENT / A156.20A82221
A156.20A82221 ✓ 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 A156.20A82221 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 5340-00-240-2601, 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
A156.20A82221
NSN: 5340-00-240-2601
FSC: 5340
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
Part NumberA156.20A82221
NSN5340-00-240-2601
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A156.20A82221 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
•
JAMB LEAF WIDTH: 7.000 INCHES NOMINAL IN
•
DOOR LEAF WIDTH: 3.500 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY AND STEEL CORROSION RESISTING PIN
•
UNABLE TO DECODE: UNABLE TO DECODE
•
KNUCKLE TYPE: FRICTION
•
KNUCKLE QUANTITY: 3
•
STYLE DESIGNATOR: TEE
•
REVERSIBLE FEATURE: NOT INCLUDED
TECHNICAL CHARACTERISTICS (FLIS)
JAMB LEAF WIDTH7.000 INCHES NOMINAL IN
DOOR LEAF WIDTH3.500 INCHES NOMINAL IN
MATERIALCOPPER ALLOY AND STEEL CORROSION RESISTING PIN
UNABLE TO DECODEUNABLE TO DECODE
KNUCKLE TYPEFRICTION
KNUCKLE QUANTITY3
STYLE DESIGNATORTEE
REVERSIBLE FEATURENOT INCLUDED
MOUNTING HOLE QUANTITY9
MATERIALSTEEL CORROSION RESISTING BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
SC922Upgraded Successor
successor cross-reference
successor
FFH116Upgraded Successor
successor cross-reference
successor
ANSI/ BHMA A156.20- A81221Upgraded Successor
successor cross-reference
successor
BHMA-A156.20Interchangeable
interchangeable cross-reference
interchangeable
SC928Interchangeable
interchangeable cross-reference
interchangeable
MS27970-12Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A156.20A82221?
A156.20A82221 is a A156.20A82221.
What parts can replace A156.20A82221?
There are 24 known substitutes for A156.20A82221: SC922, FFH116, ANSI/ BHMA A156.20- A81221 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A156.20A82221?
A156.20A82221 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-240-2601. 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