The Gasket, cataloged under National Stock Number 5330-00-040-2585, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Am General Llc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-040-2585 |
| Primary Part Number | 640426 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Am General Llc |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.004 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Aperture Diameter | 3.406 INCHES NOMINAL IN |
| Center to Center Distance Between Bolt Holes Along Length | 6.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Center to Center Distance Between Bolt Holes Along Width | 3.875 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Material | PAPER OVERALL |
| Hole Diameter | 0.469 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5330-00-040-2585 is a Gasket, manufactured by Am General Llc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-040-2585 has 2 manufacturer part numbers on file: 8329853 (U S Army Tank Automotive Command Amsta-Im-Mm), 640426 (Am General Llc).
2 possible matches (shared part number, not a government interchangeability claim): 2840-00-116-1350, 5935-01-440-1224. Verify interchangeability with system specifications before substitution.
Key specifications for 640426: Cross-Sectional Thickness: 0.004 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN; Overall Length: 7.250 INCHES NOMINAL IN; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Overall Width: 6.500 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.