The Gasket, cataloged under National Stock Number 5330-00-040-0340, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-040-0340 |
| Primary Part Number | 7403637 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.060 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| Side Radius From Gasket Center | 1.750 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | METAL AND NONMETALLIC MATERIALS |
| Aperture Diameter | 2.620 INCHES NOMINAL IN |
| Bolt Circle Diameter | 3.620 INCHES NOMINAL IN |
| Outside Corner Radius | 0.380 INCHES NOMINAL IN |
| Material | STEEL AND ASBESTOS OVERALL |
| Hole Diameter | 0.340 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 |
| Part Number | Manufacturer |
|---|---|
| 7403637 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5330-00-040-0340 is a Gasket, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-040-0340 has 1 manufacturer part number on file: 7403637 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-548-8673. Verify interchangeability with system specifications before substitution.
Key specifications for 7403637: Cross-Sectional Thickness: 0.060 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN; Side Radius From Gasket Center: 1.750 INCHES NOMINAL IN; Cross-Sectional Shape Style: METAL AND NONMETALLIC MATERIALS; Aperture Diameter: 2.620 INCHES NOMINAL IN. 8 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.