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Technical Data Sheet
PartsTable / COMPONENT / BHMA-A156.1 A2133 3-1/2IN
BHMA-A156.1 A2133 3-1/2IN ✓ 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-A156.1 A2133 3-1/2IN is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-229-4359, 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-A156.1 A2133 3-1/2IN
NSN: 5340-00-229-4359
FSC: 5340
CAGE: 41280 — BUILDERS HARDWARE MFRS ASSN INC (USA)
SPECIFICATIONS
Part NumberBHMA-A156.1 A2133 3-1/2IN
NSN5340-00-229-4359
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BHMA-A156.1 A2133 3-1/2IN 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
•
MATERIAL THICKNESS: 0.123 INCHES NOMINAL IN
•
PERFORMANCE TYPE: REGULAR DUTY
•
BODY WIDTH: 3.500 INCHES NOMINAL IN
•
RISING PIN: NOT INCLUDED
•
MOUNTING HOLE DIAMETER: 0.193 INCHES NOMINAL IN
•
PIN CENTER TO BODY EDGE DISTANCE: 1.750 INCHES NOMINAL IN
•
PIN REMOVABILITY: REMOVABLE
•
HINGE MOUNTING TYPE: FULL MORTISE
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.123 INCHES NOMINAL IN
PERFORMANCE TYPEREGULAR DUTY
BODY WIDTH3.500 INCHES NOMINAL IN
RISING PINNOT INCLUDED
MOUNTING HOLE DIAMETER0.193 INCHES NOMINAL IN
PIN CENTER TO BODY EDGE DISTANCE1.750 INCHES NOMINAL IN
PIN REMOVABILITYREMOVABLE
HINGE MOUNTING TYPEFULL MORTISE
KNUCKLE QUANTITY5
MATERIALUNABLE TO DECODE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
BHMA-A156.20Upgraded Successor
successor cross-reference
successor
MS27970-26Upgraded Successor
successor cross-reference
successor
FFH116Upgraded Successor
successor cross-reference
successor
BHMA-A156.1 A8133 3-1/2INUpgraded Successor
successor cross-reference
successor
A8133Upgraded Successor
successor cross-reference
successor
ANSI A156.1 A8133Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BHMA-A156.1 A2133 3-1/2IN?
BHMA-A156.1 A2133 3-1/2IN is a BHMA-A156.1 A2133 3-1/2IN.
What parts can replace BHMA-A156.1 A2133 3-1/2IN?
There are 20 known substitutes for BHMA-A156.1 A2133 3-1/2IN: BHMA-A156.20, MS27970-26, FFH116 and 17 more. Substitute compatibility should be verified for your specific system.
Is BHMA-A156.1 A2133 3-1/2IN still available?
BHMA-A156.1 A2133 3-1/2IN 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