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GASK040F1SS — GASKET,SPIRAL WOUND

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

GASK040F1SS: GASKET,SPIRAL WOUND.

The GASKET,SPIRAL WOUND is a the manufacturer industrial component. Key specifications include material: GRAPHITE AND STEEL CORROSION RESISTING OVERALL, hole_diameter: 0.875 INCHES NOMINAL0.875 INCHES NOMINAL IN, outside_diameter: 9.000 INCHES NOMINAL9.000 INCHES NOMINAL IN, special_features: FLEXITALLIC STAINLESS STEEL AND GRAFOILFLEXITALLIC STAINLESS STEEL AND GRAFOIL, style_designator: CIRCULAR, aperture_diameter: 4.500 INCHES NOMINAL4.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-580-0312, 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
GASK040F1SS
NSN: 5330-01-580-0312
FSC: 5330 — Packing and Gasket Materials
CAGE: 7R305 — GAUMER COMPANY, INC. DBA GAUMER PROCESS (USA)
SPECIFICATIONS
materialGRAPHITE AND STEEL CORROSION RESISTING OVERALL
hole_diameter0.875 INCHES NOMINAL0.875 INCHES NOMINAL IN
outside_diameter9.000 INCHES NOMINAL9.000 INCHES NOMINAL IN
special_featuresFLEXITALLIC STAINLESS STEEL AND GRAFOILFLEXITALLIC STAINLESS STEEL AND GRAFOIL
style_designatorCIRCULAR
aperture_diameter4.500 INCHES NOMINAL4.500 INCHES NOMINAL IN
bolt_hole_quantity88
bolt_circle_diameter7.500 INCHES NOMINAL7.500 INCHES NOMINAL IN
end_item_identification4 IN. NPS HEATER FLANGE4 IN. NPS HEATER FLANGE IN
cross-sectional_thickness0.200 INCHES NOMINAL0.200 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyRAISED FACE FLANGE GASKETRAISED FACE FLANGE GASKET
NSN5330-01-580-0312
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: GASK040F1SS 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: 0.200 INCHES NOMINAL0.200 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
OUTSIDE DIAMETER: 9.000 INCHES NOMINAL9.000 INCHES NOMINAL IN
•
APERTURE DIAMETER: 4.500 INCHES NOMINAL4.500 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 88
•
BOLT CIRCLE DIAMETER: 7.500 INCHES NOMINAL7.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.200 INCHES NOMINAL0.200 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
OUTSIDE DIAMETER9.000 INCHES NOMINAL9.000 INCHES NOMINAL IN
APERTURE DIAMETER4.500 INCHES NOMINAL4.500 INCHES NOMINAL IN
BOLT HOLE QUANTITY88
BOLT CIRCLE DIAMETER7.500 INCHES NOMINAL7.500 INCHES NOMINAL IN
SPECIAL FEATURESFLEXITALLIC STAINLESS STEEL AND GRAFOILFLEXITALLIC STAINLESS STEEL AND GRAFOIL
PART NAME ASSIGNED BY CONTROLLING AGENCYRAISED FACE FLANGE GASKETRAISED FACE FLANGE GASKET
END ITEM IDENTIFICATION4 IN. NPS HEATER FLANGE4 IN. NPS HEATER FLANGE IN
MATERIALGRAPHITE AND STEEL CORROSION RESISTING OVERALL
SUBSTITUTES & CROSS-REFERENCES 4
201263 IT 46Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
81093Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
201260 IT 52Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
201261 IT 52Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 GASK040F1SS?
GASK040F1SS is a GASKET,SPIRAL WOUND.
What parts can replace GASK040F1SS?
There are 4 known substitutes for GASK040F1SS: 201263 IT 46, 81093, 201260 IT 52 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for GASK040F1SS?
GASK040F1SS is cataloged in the U.S. Government catalog under NSN 5330-01-580-0312. 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.