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0028770340 — GASKET,SPIRAL WOUND

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

0028770340: GASKET,SPIRAL WOUND.

The GASKET,SPIRAL WOUND is a the manufacturer industrial component. Key specifications include material: GRAPHITE INTERMEDIATE RING, outside_diameter: 5.625 INCHES NOMINAL5.625 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 2.875 INCHES NOMINAL2.875 INCHES NOMINAL IN, bearing_surface_width: 0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN, end_item_identification: CVN NUCLEAR REACTOR BOUNDARY AREACVN NUCLEAR REACTOR BOUNDARY AREA. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-548-5318, 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
0028770340
NSN: 5330-01-548-5318
FSC: 5330 — Packing and Gasket Materials
CAGE: 58156 — FLEXITALLIC US, LLC (USA)
SPECIFICATIONS
materialGRAPHITE INTERMEDIATE RING
outside_diameter5.625 INCHES NOMINAL5.625 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter2.875 INCHES NOMINAL2.875 INCHES NOMINAL IN
bearing_surface_width0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN
end_item_identificationCVN NUCLEAR REACTOR BOUNDARY AREACVN NUCLEAR REACTOR BOUNDARY AREA
cross-sectional_thickness0.175 INCHES NOMINAL0.175 INCHES NOMINAL IN
gage_ring_outside_diameter3.250 INCHES NOMINAL3.250 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL WINDING W/ SOFT FILLER AND OUTER RINGMETAL WINDING W/ SOFT FILLER AND OUTER RING
part_name_assigned_by_controlling_agencyINCONEL 600 AND FLEXICARB CG STYLE B16.5 STYLE FLANGE 1500 PSI SPIRAL WOUND GASKETINCONEL 600 AND FLEXICARB CG STYLE B16.5 STYLE FLANGE 1500 PSI SPIRAL WOUND GASKET
NSN5330-01-548-5318
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 0028770340 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: 0.175 INCHES NOMINAL0.175 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
BEARING SURFACE WIDTH: 0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: METAL WINDING W/ SOFT FILLER AND OUTER RINGMETAL WINDING W/ SOFT FILLER AND OUTER RING
•
OUTSIDE DIAMETER: 5.625 INCHES NOMINAL5.625 INCHES NOMINAL IN
•
GAGE RING OUTSIDE DIAMETER: 3.250 INCHES NOMINAL3.250 INCHES NOMINAL IN
•
APERTURE DIAMETER: 2.875 INCHES NOMINAL2.875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.175 INCHES NOMINAL0.175 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
BEARING SURFACE WIDTH0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEMETAL WINDING W/ SOFT FILLER AND OUTER RINGMETAL WINDING W/ SOFT FILLER AND OUTER RING
OUTSIDE DIAMETER5.625 INCHES NOMINAL5.625 INCHES NOMINAL IN
GAGE RING OUTSIDE DIAMETER3.250 INCHES NOMINAL3.250 INCHES NOMINAL IN
APERTURE DIAMETER2.875 INCHES NOMINAL2.875 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYINCONEL 600 AND FLEXICARB CG STYLE B16.5 STYLE FLANGE 1500 PSI SPIRAL WOUND GASKETINCONEL 600 AND FLEXICARB CG STYLE B16.5 STYLE FLANGE 1500 PSI SPIRAL WOUND GASKET
END ITEM IDENTIFICATIONCVN NUCLEAR REACTOR BOUNDARY AREACVN NUCLEAR REACTOR BOUNDARY AREA
MATERIALGRAPHITE INTERMEDIATE RING
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

No substitute or cross-reference records for this part.

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 0028770340?
0028770340 is a GASKET,SPIRAL WOUND.
What is the NSN for 0028770340?
0028770340 is cataloged in the U.S. Government catalog under NSN 5330-01-548-5318. 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.