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PartsTable / COMPONENT / BHMA A156.20-6
BHMA A156.20-6 ✓ 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 A156.20-6 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 5340-00-234-8426, 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 A156.20-6
NSN: 5340-00-234-8426
FSC: 5340
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
Part NumberBHMA A156.20-6
NSN5340-00-234-8426
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BHMA A156.20-6 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
•
SLOTTED LEAF LENGTH: 6.000 INCHES NOMINAL IN
•
REVERSIBLE FEATURE: NOT INCLUDED
•
MATERIAL: STEEL STAPLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-409, GRADE 2-CANCELED FED SPEC SINGLE MATERIAL RESPONSE STAPLE
•
STYLE DESIGNATOR: SINGLE SAFETY
TECHNICAL CHARACTERISTICS (FLIS)
KNUCKLE TYPEFRICTION
SLOTTED LEAF LENGTH6.000 INCHES NOMINAL IN
REVERSIBLE FEATURENOT INCLUDED
END ITEM IDENTIFICATIONW/S:MINE COUNTERMEASURES SUPPORT (MCS) CLASS (LPH-12); AIRCRAFT, ORION P-3; EMORY S. LAND CLASS AS; FORRESTAL CLASS CV; MISSILE, MINUTEMAN LGM-30
SPECIAL FEATURESHAS A SAFETY SWIVEL STAPLE STYLE
MATERIALSTEEL STAPLE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-409, GRADE 2-CANCELED FED SPEC SINGLE MATERIAL RESPONSE STAPLE
STYLE DESIGNATORSINGLE SAFETY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626, COMP 11 FED SPEC SINGLE MATERIAL RESPONSE AND FED STD 66, COMP 410, 416 OR 430 FED STD SINGLE MATERIAL RESPONSE PIN
MATERIALSTEEL STAPLE PLATE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
SC922Interchangeable
interchangeable cross-reference
interchangeable
FFH116Interchangeable
interchangeable cross-reference
interchangeable
ANSI/ BHMA A156.20- A81221Interchangeable
interchangeable cross-reference
interchangeable
SC902-6Interchangeable
interchangeable cross-reference
interchangeable
ANSI/BHMA A156.20Interchangeable
interchangeable cross-reference
interchangeable
FF-H-00116Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BHMA A156.20-6?
BHMA A156.20-6 is a BHMA A156.20-6.
What parts can replace BHMA A156.20-6?
There are 15 known substitutes for BHMA A156.20-6: SC922, FFH116, ANSI/ BHMA A156.20- A81221 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BHMA A156.20-6?
BHMA A156.20-6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-234-8426. 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