PartsTable
Technical Data Sheet
PartsTable / COMPONENT / BHMA-A156.1 A2112 4-1/2IN
BHMA-A156.1 A2112 4-1/2IN ✓ 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 A2112 4-1/2IN 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 5340-00-229-4361, 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 A2112 4-1/2IN
NSN: 5340-00-229-4361
FSC: 5340
CAGE: 41280 — BUILDERS HARDWARE MFRS ASSN INC (USA)
SPECIFICATIONS
Part NumberBHMA-A156.1 A2112 4-1/2IN
NSN5340-00-229-4361
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BHMA-A156.1 A2112 4-1/2IN 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
•
BODY WIDTH: 4.500 INCHES NOMINAL IN
•
MOUNTING HOLE QUANTITY: 8
•
MOUNTING HOLE DIAMETER: 0.221 INCHES NOMINAL IN
•
PIN CENTER TO BODY EDGE DISTANCE: 2.250 INCHES NOMINAL IN
•
HINGE MOUNTING TYPE: FULL MORTISE
•
PIN REMOVABILITY: NONREMOVABLE
•
KNUCKLE QUANTITY: 2 OR 5
•
REVERSIBLE FEATURE: NOT INCLUDED
TECHNICAL CHARACTERISTICS (FLIS)
BODY WIDTH4.500 INCHES NOMINAL IN
MOUNTING HOLE QUANTITY8
MOUNTING HOLE DIAMETER0.221 INCHES NOMINAL IN
PIN CENTER TO BODY EDGE DISTANCE2.250 INCHES NOMINAL IN
HINGE MOUNTING TYPEFULL MORTISE
PIN REMOVABILITYNONREMOVABLE
KNUCKLE QUANTITY2 OR 5
REVERSIBLE FEATURENOT INCLUDED
SURFACE TREATMENTUNABLE TO DECODE
SURFACE TREATMENTUNABLE TO DECODE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
BHMA-A156.20Upgraded Successor
successor cross-reference
successor
MS27970-26Upgraded Successor
successor cross-reference
successor
FFH116Upgraded Successor
successor cross-reference
successor
BHMA-A156.1 A2133 3-1/2INUpgraded Successor
successor cross-reference
successor
ANSI A156.1 A2133Upgraded Successor
successor cross-reference
successor
01555Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy BHMA-A156.1 A2112 4-1/2IN?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is BHMA-A156.1 A2112 4-1/2IN?
BHMA-A156.1 A2112 4-1/2IN is a BHMA-A156.1 A2112 4-1/2IN.
What parts can replace BHMA-A156.1 A2112 4-1/2IN?
There are 18 known substitutes for BHMA-A156.1 A2112 4-1/2IN: BHMA-A156.20, MS27970-26, FFH116 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BHMA-A156.1 A2112 4-1/2IN?
BHMA-A156.1 A2112 4-1/2IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-229-4361. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — BHMA-A156.1 A2112 4-1/2IN

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026