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731581PC4 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

731581PC4: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include hole_diameter: 0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, hardness_rating: 80.0 SHORE DUROMETER A NOMINAL OVERALL, outside_diameter: 5.990 INCHES MINIMUM AND 6.010 INCHES MAXIMUM IN, style_designator: CIRCULAR, aperture_diameter: 5.240 INCHES MINIMUM AND 5.260 INCHES MAXIMUM IN, bolt_circle_diameter: 5.615 INCHES MINIMUM AND 5.635 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-210-0963, 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
731581PC4
NSN: 5330-00-210-0963
FSC: 5330 — Packing and Gasket Materials
CAGE: 44114 — BAE SYSTEMS LAND & ARMAMENTS L.P. (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND COTTON AND COPPER ALLOY OR RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND PLASTIC POLYAMIDE NYLON OVERALL
hole_diameter0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
hardness_rating80.0 SHORE DUROMETER A NOMINAL OVERALL
outside_diameter5.990 INCHES MINIMUM AND 6.010 INCHES MAXIMUM IN
style_designatorCIRCULAR
aperture_diameter5.240 INCHES MINIMUM AND 5.260 INCHES MAXIMUM IN
bolt_hole_quantity6
bolt_circle_diameter5.615 INCHES MINIMUM AND 5.635 INCHES MAXIMUM IN
cross-sectional_thickness0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
cross-sectional_shape_styleFIBRE OR COMPOSITION WITH WIRE INSERT
NSN5330-00-210-0963
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 731581PC4 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: 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
•
HARDNESS RATING: 80.0 SHORE DUROMETER A NOMINAL OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: FIBRE OR COMPOSITION WITH WIRE INSERT
•
OUTSIDE DIAMETER: 5.990 INCHES MINIMUM AND 6.010 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 5.240 INCHES MINIMUM AND 5.260 INCHES MAXIMUM IN
•
BOLT HOLE QUANTITY: 6
•
BOLT CIRCLE DIAMETER: 5.615 INCHES MINIMUM AND 5.635 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
HARDNESS RATING80.0 SHORE DUROMETER A NOMINAL OVERALL
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLEFIBRE OR COMPOSITION WITH WIRE INSERT
OUTSIDE DIAMETER5.990 INCHES MINIMUM AND 6.010 INCHES MAXIMUM IN
APERTURE DIAMETER5.240 INCHES MINIMUM AND 5.260 INCHES MAXIMUM IN
BOLT HOLE QUANTITY6
BOLT CIRCLE DIAMETER5.615 INCHES MINIMUM AND 5.635 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND COTTON AND COPPER ALLOY OR RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND PLASTIC POLYAMIDE NYLON OVERALL
HOLE DIAMETER0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
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
Shelf-life managedAcquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 731581PC4?
731581PC4 is a GASKET.
What is the NSN for 731581PC4?
731581PC4 is cataloged in the U.S. Government catalog under NSN 5330-00-210-0963. 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.