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66-2646 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

66-2646: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include end_item_identification: KC-46 AIRCRAFT, reference_number_differentiating_characteristics: ITEM IS FAA CERTIFIED. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-043-0054, 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
66-2646
NSN: 5330-01-043-0054
NIINs: 010430054, 016694074
FSC: 5330 — Packing and Gasket Materials
CAGE: 17765 — THE BOEING COMPANY DIV COMMERCIAL (USA)
SPECIFICATIONS
end_item_identificationKC-46 AIRCRAFT
reference_number_differentiating_characteristicsITEM IS FAA CERTIFIED
NSN5330-01-043-0054
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 66-2646 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
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MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-6130 TY 2 GR A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
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CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
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OUTSIDE DIAMETER: 8.100 INCHES NOMINAL IN
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APERTURE DIAMETER: 6.460 INCHES NOMINAL IN
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BOLT HOLE QUANTITY: 3
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BOLT CIRCLE DIAMETER: 7.360 INCHES NOMINAL IN
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MATERIAL: RUBBER CHLOROPRENE CLASS CR OVERALL
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HOLE DIAMETER: 0.360 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6130 TY 2 GR A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER8.100 INCHES NOMINAL IN
APERTURE DIAMETER6.460 INCHES NOMINAL IN
BOLT HOLE QUANTITY3
BOLT CIRCLE DIAMETER7.360 INCHES NOMINAL IN
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
HOLE DIAMETER0.360 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
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 66-2646?
66-2646 is a GASKET.
What is the NSN for 66-2646?
66-2646 is cataloged in the U.S. Government catalog under NSN 5330-01-043-0054. 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.