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77-081649-01 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

77-081649-01: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER OVERALL, overall_width: 0.484 INCHES NOMINAL IN, aperture_width: 0.281 INCHES NOMINAL IN, overall_length: 4.290 INCHES NOMINAL IN, aperture_length: 3.990 INCHES NOMINAL IN, style_designator: NON-CIRCULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-271-6905, 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
77-081649-01
NSN: 5330-01-271-6905
FSC: 5330 — Packing and Gasket Materials
CAGE: 26916 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP DIV MULTIPLE (USA)
SPECIFICATIONS
materialRUBBER OVERALL
overall_width0.484 INCHES NOMINAL IN
aperture_width0.281 INCHES NOMINAL IN
overall_length4.290 INCHES NOMINAL IN
aperture_length3.990 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-01-271-6905
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 77-081649-01 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
•
STYLE DESIGNATOR: NON-CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE WIDTH: 0.281 INCHES NOMINAL IN
•
APERTURE LENGTH: 3.990 INCHES NOMINAL IN
•
MATERIAL: RUBBER OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORNON-CIRCULAR
OVERALL LENGTH4.290 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH0.484 INCHES NOMINAL IN
APERTURE WIDTH0.281 INCHES NOMINAL IN
APERTURE LENGTH3.990 INCHES NOMINAL IN
MATERIALRUBBER OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 77-081649-01?
77-081649-01 is a GASKET.
What is the NSN for 77-081649-01?
77-081649-01 is cataloged in the U.S. Government catalog under NSN 5330-01-271-6905. 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.