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6531-21-202-4101 — HINGE,BUTT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6531-21-202-4101: HINGE,BUTT.

The HINGE,BUTT is a the manufacturer industrial component. Key specifications include material: UNABLE TO DECODE, body_width: 4.192 INCHES NOMINAL IN, knuckle_type: FRICTION, performance_type: NOT RATED, pin_removability: NONREMOVABLE, surface_treatment: UNABLE TO DECODE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-246-0686, 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
6531-21-202-4101
NSN: 5340-01-246-0686
FSC: 5340 — Hardware, Commercial
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialUNABLE TO DECODE
body_width4.192 INCHES NOMINAL IN
knuckle_typeFRICTION
knuckle_quantity3
performance_typeNOT RATED
pin_removabilityNONREMOVABLE
surface_treatmentUNABLE TO DECODE
material_thickness0.062 INCHES NOMINAL IN
reversible_featureNOT INCLUDED
hinge_mounting_typeFULL SURFACE
mounting_hole_diameter0.281 INCHES NOMINAL IN
mounting_hole_quantity6
NSN5340-01-246-0686
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6531-21-202-4101 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
•
MOUNTING HOLE QUANTITY: 6
•
REVERSIBLE FEATURE: NOT INCLUDED
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
•
BODY WIDTH: 4.192 INCHES NOMINAL IN
•
MOUNTING HOLE DIAMETER: 0.281 INCHES NOMINAL IN
•
PIN CENTER TO BODY EDGE DISTANCE: 1.000 INCHES NOMINAL IN
•
HINGE MOUNTING TYPE: FULL SURFACE
•
MATERIAL THICKNESS: 0.062 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY6
REVERSIBLE FEATURENOT INCLUDED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
BODY WIDTH4.192 INCHES NOMINAL IN
MOUNTING HOLE DIAMETER0.281 INCHES NOMINAL IN
PIN CENTER TO BODY EDGE DISTANCE1.000 INCHES NOMINAL IN
HINGE MOUNTING TYPEFULL SURFACE
MATERIAL THICKNESS0.062 INCHES NOMINAL IN
PIN REMOVABILITYNONREMOVABLE
KNUCKLE QUANTITY3
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6531-21-202-4101?
6531-21-202-4101 is a HINGE,BUTT.
What is the NSN for 6531-21-202-4101?
6531-21-202-4101 is cataloged in the U.S. Government catalog under NSN 5340-01-246-0686. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.