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Technical Data Sheet
PartsTable / COMPONENT / FBB179
FBB179 ✓ 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 HINGE,BUTT is a the manufacturer industrial component. Key specifications include material: UNABLE TO DECODE, body_width: 4.500 INCHES NOMINAL IN, knuckle_type: BALL BEARING, pin_tip_style: FLAT BUTTON, knuckle_quantity: 2 OR 3, performance_type: NOT RATED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-240-0038, 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
FBB179
NSN: 5340-00-240-0038
FSC: 5340
CAGE: 14557 — STANLEY WORKS THE (USA)
SPECIFICATIONS
materialUNABLE TO DECODE
body_width4.500 INCHES NOMINAL IN
knuckle_typeBALL BEARING
pin_tip_styleFLAT BUTTON
knuckle_quantity2 OR 3
performance_typeNOT RATED
pin_removabilityNONREMOVABLE
special_featuresBOTH LEAVES DRILLED AND TAPPED FOR 12-24 UNC 2B MACHINE SCREW
style_designatorBUTT
surface_treatmentUNABLE TO DECODE
material_thickness0.134 INCHES NOMINAL IN
reversible_featureNOT INCLUDED
NSN5340-00-240-0038
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: FBB179 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
•
REVERSIBLE FEATURE: NOT INCLUDED
•
BODY WIDTH: 4.000 INCHES NOMINAL IN
•
MOUNTING HOLE QUANTITY: 8
•
PERFORMANCE TYPE: MEDIUM DUTY
•
PIN CENTER TO BODY EDGE DISTANCE: 2.000 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: TH2105 TYPE
•
PIN TIP STYLE: FLAT BUTTON
•
SURFACE TREATMENT: UNABLE TO DECODE
TECHNICAL CHARACTERISTICS (FLIS)
REVERSIBLE FEATURENOT INCLUDED
BODY WIDTH4.000 INCHES NOMINAL IN
MOUNTING HOLE QUANTITY8
PERFORMANCE TYPEMEDIUM DUTY
PIN CENTER TO BODY EDGE DISTANCE2.000 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATATH2105 TYPE
PIN TIP STYLEFLAT BUTTON
SURFACE TREATMENTUNABLE TO DECODE
HINGE MOUNTING TYPEFULL MORTISE
KNUCKLE TYPEBALL BEARING
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 FBB179?
FBB179 is a HINGE,BUTT.
What parts can replace FBB179?
There are 20 known substitutes for FBB179: BHMA-A156.20, MS27970-26, FFH116 and 17 more. Substitute compatibility should be verified for your specific system.
Is FBB179 still available?
FBB179 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