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A58646 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A58646: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: CORK OVERALL, hole_diameter: 0.396 INCHES MINIMUM AND 0.416 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 6.308 INCHES MINIMUM AND 6.328 INCHES MAXIMUM IN, style_designator: NON-CIRCULAR, aperture_diameter: 4.521 INCHES MINIMUM AND 4.541 INCHES MAXIMUM IN, bolt_circle_diameter: 5.428 INCHES MINIMUM AND 5.448 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-508-4791, 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
A58646
NSN: 5330-00-508-4791
FSC: 5330 — Packing and Gasket Materials
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialCORK OVERALL
hole_diameter0.396 INCHES MINIMUM AND 0.416 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
overall_width6.308 INCHES MINIMUM AND 6.328 INCHES MAXIMUM IN
style_designatorNON-CIRCULAR
aperture_diameter4.521 INCHES MINIMUM AND 4.541 INCHES MAXIMUM IN
bolt_hole_quantity4
bolt_circle_diameter5.428 INCHES MINIMUM AND 5.448 INCHES MAXIMUM IN
outside_corner_radius0.410 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
cross-sectional_thickness0.030 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
side_radius_from_gasket_center2.625 INCHES MINIMUM AND 2.685 INCHES MAXIMUM IN
material_document_and_classificationCS-301 FSCM 03938 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-508-4791
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A58646 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: 0.030 INCHES NOMINAL IN
•
SIDE RADIUS FROM GASKET CENTER: 2.625 INCHES MINIMUM AND 2.685 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: NON-CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: CS-301 FSCM 03938 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE DIAMETER: 4.521 INCHES MINIMUM AND 4.541 INCHES MAXIMUM IN
•
BOLT HOLE QUANTITY: 4
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.030 INCHES NOMINAL IN
SIDE RADIUS FROM GASKET CENTER2.625 INCHES MINIMUM AND 2.685 INCHES MAXIMUM IN
STYLE DESIGNATORNON-CIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONCS-301 FSCM 03938 MFR REF SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH6.308 INCHES MINIMUM AND 6.328 INCHES MAXIMUM IN
APERTURE DIAMETER4.521 INCHES MINIMUM AND 4.541 INCHES MAXIMUM IN
BOLT HOLE QUANTITY4
BOLT CIRCLE DIAMETER5.428 INCHES MINIMUM AND 5.448 INCHES MAXIMUM IN
OUTSIDE CORNER RADIUS0.410 INCHES MINIMUM AND 0.470 INCHES MAXIMUM 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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A58646?
A58646 is a GASKET.
What is the NSN for A58646?
A58646 is cataloged in the U.S. Government catalog under NSN 5330-00-508-4791. 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.