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6510-31-100-5101 — SEAL,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6510-31-100-5101: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL SPRING, seal_width: 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN, construction: SOLID, housing_bore_diameter: 4.748 INCHES MINIMUM AND 4.751 INCHES MAXIMUM IN, end_item_identification: HELICOPTER, MH-53E; HELICOPTER, CH-53A/D/E; HELICOPTER, SUPER JOLLY H-53 A, accommodated_shaft_diameter: 3.748 INCHES MINIMUM AND 3.752 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-925-9688, 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
6510-31-100-5101
NSN: 5330-00-925-9688
FSC: 5330 — Packing and Gasket Materials
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialSTEEL SPRING
seal_width0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
constructionSOLID
housing_bore_diameter4.748 INCHES MINIMUM AND 4.751 INCHES MAXIMUM IN
end_item_identificationHELICOPTER, MH-53E; HELICOPTER, CH-53A/D/E; HELICOPTER, SUPER JOLLY H-53 A
accommodated_shaft_diameter3.748 INCHES MINIMUM AND 3.752 INCHES MAXIMUM IN
cross-sectional_shape_styleDUAL LIP
NSN5330-00-925-9688
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6510-31-100-5101 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
•
SEAL WIDTH: 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
•
HOUSING BORE DIAMETER: 4.748 INCHES MINIMUM AND 4.751 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: DUAL LIP
•
ACCOMMODATED SHAFT DIAMETER: 3.748 INCHES MINIMUM AND 3.752 INCHES MAXIMUM IN
•
MATERIAL: STEEL SPRING
•
CONSTRUCTION: SOLID
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
HOUSING BORE DIAMETER4.748 INCHES MINIMUM AND 4.751 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEDUAL LIP
ACCOMMODATED SHAFT DIAMETER3.748 INCHES MINIMUM AND 3.752 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONHELICOPTER, MH-53E; HELICOPTER, CH-53A/D/E; HELICOPTER, SUPER JOLLY H-53 A
MATERIALSTEEL SPRING
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
CONSTRUCTIONSOLID
SUBSTITUTES & CROSS-REFERENCES 3
515360-40Reference document
Same NSN cross-reference
Reference document — Secondary reference
515360Reference document
Same NSN cross-reference
Reference document — Secondary reference
80-515360Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 6510-31-100-5101?
6510-31-100-5101 is a SEAL,PLAIN.
What parts can replace 6510-31-100-5101?
There are 3 known substitutes for 6510-31-100-5101: 515360-40, 515360, 80-515360. Substitute compatibility should be verified for your specific system.
What is the NSN for 6510-31-100-5101?
6510-31-100-5101 is cataloged in the U.S. Government catalog under NSN 5330-00-925-9688. 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.