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N-865 — SEAT,VALVE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

N-865: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, overall_width: 5.219 INCHES NOMINAL IN, aperture_width: 4.719 INCHES NOMINAL IN, overall_length: 11.031 INCHES NOMINAL IN, aperture_length: 10.531 INCHES NOMINAL IN, flange_diameter: 1.065 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-708-8168, 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
N-865
NSN: 5330-00-708-8168
NIINs: 007088168, 011221665
FSC: 5330 — Packing and Gasket Materials
CAGE: 93790 — CORNELL-DUBILIER ELECTRONICS, INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
overall_width5.219 INCHES NOMINAL IN
aperture_width4.719 INCHES NOMINAL IN
overall_length11.031 INCHES NOMINAL IN
aperture_length10.531 INCHES NOMINAL IN
flange_diameter1.065 INCHES NOMINAL IN
hardness_rating25.0 SHORE DUROMETER A MINIMUM AND 30.0 SHORE DUROMETER A MAXIMUM OVERALL
style_designatorPLAIN FLANGED
seat_angle_in_deg45.000 NOMINAL
under_flange_height0.200 INCHES NOMINAL IN
body_inside_diameter0.250 INCHES NOMINAL IN
inside_corner_radius0.125 INCHES NOMINAL IN
NSN5330-00-708-8168
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: N-865 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: 0.250 INCHES NOMINAL IN
•
INSIDE CORNER RADIUS: 0.125 INCHES NOMINAL IN
•
HARDNESS RATING: 25.0 SHORE DUROMETER A MINIMUM AND 30.0 SHORE DUROMETER A MAXIMUM OVERALL
•
STYLE DESIGNATOR: NON-CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE WIDTH: 4.719 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.250 INCHES NOMINAL IN
INSIDE CORNER RADIUS0.125 INCHES NOMINAL IN
HARDNESS RATING25.0 SHORE DUROMETER A MINIMUM AND 30.0 SHORE DUROMETER A MAXIMUM OVERALL
STYLE DESIGNATORNON-CIRCULAR
OVERALL LENGTH11.031 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH5.219 INCHES NOMINAL IN
APERTURE WIDTH4.719 INCHES NOMINAL IN
APERTURE LENGTH10.531 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.406 INCHES NOMINAL IN
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 N-865?
N-865 is a SEAT,VALVE.
What is the NSN for N-865?
N-865 is cataloged in the U.S. Government catalog under NSN 5330-00-708-8168. 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.