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12358939 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12358939: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR OVERALL, overall_width: 8.210 INCHES NOMINAL IN, aperture_width: 5.710 INCHES NOMINAL IN, overall_length: 26.300 INCHES NOMINAL IN, aperture_length: 23.800 INCHES NOMINAL IN, style_designator: NON-CIRCULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-302-9946, 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
12358939
NSN: 5330-01-302-9946
FSC: 5330 — Packing and Gasket Materials
CAGE: 18265 — DONALDSON COMPANY, INC. (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
overall_width8.210 INCHES NOMINAL IN
aperture_width5.710 INCHES NOMINAL IN
overall_length26.300 INCHES NOMINAL IN
aperture_length23.800 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
end_item_identificationARMORED MULTI-PURPOSE VEHICLE (AMPV); MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
cross-sectional_thickness0.540 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
material_document_and_classificationASTM D1056 SCE 43BF2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
outside_edge_to_inside_edge_smallest_distance_along_width1.250 INCHES NOMINAL IN
outside_edge_to_inside_edge_smallest_distance_along_length1.250 INCHES NOMINAL IN
NSN5330-01-302-9946
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12358939 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: 0.540 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
•
OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG WIDTH: 1.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D1056 SCE 43BF2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
APERTURE WIDTH: 5.710 INCHES NOMINAL IN
•
APERTURE LENGTH: 23.800 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.540 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG WIDTH1.250 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D1056 SCE 43BF2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH26.300 INCHES NOMINAL IN
OVERALL WIDTH8.210 INCHES NOMINAL IN
APERTURE WIDTH5.710 INCHES NOMINAL IN
APERTURE LENGTH23.800 INCHES NOMINAL IN
OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG LENGTH1.250 INCHES NOMINAL IN
END ITEM IDENTIFICATIONARMORED MULTI-PURPOSE VEHICLE (AMPV); MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
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 managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12358939?
12358939 is a GASKET.
What is the NSN for 12358939?
12358939 is cataloged in the U.S. Government catalog under NSN 5330-01-302-9946. 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.