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3696990 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3696990: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: ASBESTOS AND STEEL CORROSION RESISTING OVERALL, outside_diameter: 2.500 INCHES NOMINAL IN, special_features: CANCELLED NSN NOTE THAT REPLACEMENT NSN IS 5330013874307, style_designator: CIRCULAR, aperture_diameter: 2.031 INCHES NOMINAL IN, cross-sectional_thickness: 0.640 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-678-4501, 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
3696990
NSN: 5330-00-678-4501
FSC: 5330 — Packing and Gasket Materials
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
materialASBESTOS AND STEEL CORROSION RESISTING OVERALL
outside_diameter2.500 INCHES NOMINAL IN
special_featuresCANCELLED NSN NOTE THAT REPLACEMENT NSN IS 5330013874307
style_designatorCIRCULAR
aperture_diameter2.031 INCHES NOMINAL IN
cross-sectional_thickness0.640 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL AND NONMETALLIC MATERIALS
NSN5330-00-678-4501
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3696990 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
•
CROSS-SECTIONAL THICKNESS: 0.640 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: METAL AND NONMETALLIC MATERIALS
•
OUTSIDE DIAMETER: 2.500 INCHES NOMINAL IN
•
APERTURE DIAMETER: 2.031 INCHES NOMINAL IN
•
MATERIAL: ASBESTOS AND STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.640 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLEMETAL AND NONMETALLIC MATERIALS
OUTSIDE DIAMETER2.500 INCHES NOMINAL IN
APERTURE DIAMETER2.031 INCHES NOMINAL IN
SPECIAL FEATURESCANCELLED NSN NOTE THAT REPLACEMENT NSN IS 5330013874307
MATERIALASBESTOS AND STEEL CORROSION RESISTING OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
164191Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3696990?
3696990 is a GASKET.
What parts can replace 3696990?
There is 1 known substitute for 3696990: 164191. Substitute compatibility should be verified for your specific system.
What is the NSN for 3696990?
3696990 is cataloged in the U.S. Government catalog under NSN 5330-00-678-4501. 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.