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6510-21-107-8104 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6510-21-107-8104: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE CLASS Q SEALING ELEMENT B, seal_width: 0.634 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN, temp_rating: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, housing_bore_diameter: 5.998 INCHES MINIMUM AND 6.001 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-342-9587, 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
6510-21-107-8104
NSN: 5330-00-342-9587
FSC: 5330 — Packing and Gasket Materials
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q SEALING ELEMENT B
seal_width0.634 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
temp_rating-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
housing_bore_diameter5.998 INCHES MINIMUM AND 6.001 INCHES MAXIMUM IN
NSN5330-00-342-9587
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6510-21-107-8104 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
•
TEMP RATING: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
•
SEAL WIDTH: 0.634 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
•
HOUSING BORE DIAMETER: 5.998 INCHES MINIMUM AND 6.001 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SILICONE CLASS Q SEALING ELEMENT B
TECHNICAL CHARACTERISTICS
TEMP RATING-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
SEAL WIDTH0.634 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
HOUSING BORE DIAMETER5.998 INCHES MINIMUM AND 6.001 INCHES MAXIMUM IN
MATERIALRUBBER SILICONE CLASS Q SEALING ELEMENT B
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6510-21-107-8104?
6510-21-107-8104 is a SEAL,PLAIN ENCASED.
What is the NSN for 6510-21-107-8104?
6510-21-107-8104 is cataloged in the U.S. Government catalog under NSN 5330-00-342-9587. 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.