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Technical Data Sheet
PartsTable / COMPONENT / BHMA-A156.20
BHMA-A156.20 ✓ 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 BHMA-A156.20 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-200-7561, 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
BHMA-A156.20
NSN: 5340-00-200-7561
FSC: 5340
CAGE: 41280 — BUILDERS HARDWARE MFRS ASSN INC (USA)
SPECIFICATIONS
Part NumberBHMA-A156.20
NSN5340-00-200-7561
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BHMA-A156.20 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
•
KNUCKLE TYPE: FRICTION
•
REVERSIBLE FEATURE: NOT INCLUDED
•
UNABLE TO DECODE: UNABLE TO DECODE
•
STYLE DESIGNATOR: TEE
•
MOUNTING HOLE DIAMETER: 0.169 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626, COMP 11 FED SPEC SINGLE MATERIAL RESPONSE AND FED STD 66, COMP 302, 303, OR 304 FED STD SINGLE MATERIAL RESPONSE PIN
•
MATERIAL: COPPER ALLOY AND STEEL CORROSION RESISTING PIN
TECHNICAL CHARACTERISTICS (FLIS)
KNUCKLE TYPEFRICTION
REVERSIBLE FEATURENOT INCLUDED
UNABLE TO DECODEUNABLE TO DECODE
STYLE DESIGNATORTEE
MOUNTING HOLE DIAMETER0.169 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626, COMP 11 FED SPEC SINGLE MATERIAL RESPONSE AND FED STD 66, COMP 302, 303, OR 304 FED STD SINGLE MATERIAL RESPONSE PIN
MATERIALCOPPER ALLOY AND STEEL CORROSION RESISTING PIN
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66, COMP 410, 416 OR 430 FED STD SINGLE MATERIAL RESPONSE BODY
PIN CENTER TO JAMB LEAF EDGE DISTANCE0.875 INCHES NOMINAL IN
JAMB LEAF WIDTH2.875 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
L928-LB2HUpgraded Successor
successor cross-reference
successor
SC928Upgraded Successor
successor cross-reference
successor
SC922Upgraded Successor
successor cross-reference
successor
FFH116Upgraded Successor
successor cross-reference
successor
ANSI/ BHMA A156.20- A81221Upgraded Successor
successor cross-reference
successor
A82221Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BHMA-A156.20?
BHMA-A156.20 is a BHMA-A156.20.
What parts can replace BHMA-A156.20?
There are 23 known substitutes for BHMA-A156.20: L928-LB2H, SC928, SC922 and 20 more. Substitute compatibility should be verified for your specific system.
Is BHMA-A156.20 still available?
BHMA-A156.20 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