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7708078 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7708078: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, outside_diameter: 2.281 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 1.625 INCHES NOMINAL IN, cross-sectional_thickness: 0.250 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-770-8078, 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
7708078
NSN: 5330-00-770-8078
NIINs: 007708078, 011591831
FSC: 5330 — Packing and Gasket Materials
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
outside_diameter2.281 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter1.625 INCHES NOMINAL IN
cross-sectional_thickness0.250 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-770-8078
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7708078 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
•
LUBRICATION MATERIAL: OIL OVERALL
•
CROSS-SECTIONAL THICKNESS: 0.250 INCHES NOMINAL IN
•
LUBRICATION METHOD: IMPREGNATED
•
HARDNESS RATING: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000,5BG710BE3F1 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 2.281 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LUBRICATION MATERIALOIL OVERALL
CROSS-SECTIONAL THICKNESS0.250 INCHES NOMINAL IN
LUBRICATION METHODIMPREGNATED
HARDNESS RATING65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000,5BG710BE3F1 ASSN STD ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER2.281 INCHES NOMINAL IN
APERTURE DIAMETER1.625 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
5330007708078Reference 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 7708078?
7708078 is a GASKET.
What parts can replace 7708078?
There is 1 known substitute for 7708078: 5330007708078. Substitute compatibility should be verified for your specific system.
What is the NSN for 7708078?
7708078 is cataloged in the U.S. Government catalog under NSN 5330-00-770-8078. 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.