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8681-118-340 — GASKET,SPIRAL WOUND

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8681-118-340: GASKET,SPIRAL WOUND.

The GASKET,SPIRAL WOUND is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 AND GRAPHITE OVERALL, outside_diameter: 9.718 INCHES NOMINAL9.718 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 8.500 INCHES NOMINAL8.500 INCHES NOMINAL IN, end_item_identification: 6 INCH VALVE GATE6 INCH VALVE GATE IN, cross-sectional_thickness: 0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-466-8959, 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
8681-118-340
NSN: 5330-01-466-8959
FSC: 5330 — Packing and Gasket Materials
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
materialSTEEL COMP 316 AND GRAPHITE OVERALL
outside_diameter9.718 INCHES NOMINAL9.718 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter8.500 INCHES NOMINAL8.500 INCHES NOMINAL IN
end_item_identification6 INCH VALVE GATE6 INCH VALVE GATE IN
cross-sectional_thickness0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
NSN5330-01-466-8959
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8681-118-340 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: 0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: METAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
•
OUTSIDE DIAMETER: 9.718 INCHES NOMINAL9.718 INCHES NOMINAL IN
•
APERTURE DIAMETER: 8.500 INCHES NOMINAL8.500 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 316 AND GRAPHITE OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLEMETAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
OUTSIDE DIAMETER9.718 INCHES NOMINAL9.718 INCHES NOMINAL IN
APERTURE DIAMETER8.500 INCHES NOMINAL8.500 INCHES NOMINAL IN
END ITEM IDENTIFICATION6 INCH VALVE GATE6 INCH VALVE GATE IN
MATERIALSTEEL COMP 316 AND GRAPHITE 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 2
8681-752 REV B 8681-118-340Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
83309-45 PART 19 8681-118-340Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 8681-118-340?
8681-118-340 is a GASKET,SPIRAL WOUND.
What parts can replace 8681-118-340?
There are 2 known substitutes for 8681-118-340: 8681-752 REV B 8681-118-340, 83309-45 PART 19 8681-118-340. Substitute compatibility should be verified for your specific system.
What is the NSN for 8681-118-340?
8681-118-340 is cataloged in the U.S. Government catalog under NSN 5330-01-466-8959. 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.