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704AS8257-2 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

704AS8257-2: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include hole_diameter: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, bolt_hole_quantity: 18, cross-sectional_thickness: 0.016 INCHES MINIMUM AND 0.024 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-265-8311, 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
704AS8257-2
NSN: 5330-01-265-8311
FSC: 5330 — Packing and Gasket Materials
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
hole_diameter0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
bolt_hole_quantity18
cross-sectional_thickness0.016 INCHES MINIMUM AND 0.024 INCHES MAXIMUM IN
NSN5330-01-265-8311
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 704AS8257-2 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: 0.016 INCHES MINIMUM AND 0.024 INCHES MAXIMUM IN
•
BOLT HOLE QUANTITY: 18
•
HOLE DIAMETER: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.016 INCHES MINIMUM AND 0.024 INCHES MAXIMUM IN
BOLT HOLE QUANTITY18
HOLE DIAMETER0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
SUBSTITUTES & CROSS-REFERENCES 1
898257-2Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 704AS8257-2?
704AS8257-2 is a GASKET.
What parts can replace 704AS8257-2?
There is 1 known substitute for 704AS8257-2: 898257-2. Substitute compatibility should be verified for your specific system.
What is the NSN for 704AS8257-2?
704AS8257-2 is cataloged in the U.S. Government catalog under NSN 5330-01-265-8311. 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.