The Plug,expansion, cataloged under National Stock Number 5340-00-058-7979, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Army Weapons Command Attn Amswe-Ree-S. Government technical data includes 7 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 | 5340-00-058-7979 |
| Primary Part Number | 587979 |
| Item Name | Plug,expansion |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Army Weapons Command Attn Amswe-Ree-S |
| Status | ACTIVE |
| Radius | 4.500 INCHES NOMINAL IN |
| Outside Diameter | 2.745 INCHES MINIMUM AND 2.755 INCHES MAXIMUM IN |
| Style Designator | CONCAVE |
| Material Document and Classification | QQ-S-633, FS1008 TO FS1010 FED SPEC SINGLE MATERIAL RESPONSE |
| Material Thickness | 0.083 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE |
| Material | STEEL |
| 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 |
|---|---|
| 587979 | Army Weapons Command Attn Amswe-Ree-S (USA) |
NSN 5340-00-058-7979 is a Plug,expansion, manufactured by Army Weapons Command Attn Amswe-Ree-S, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-058-7979 has 1 manufacturer part number on file: 587979 (Army Weapons Command Attn Amswe-Ree-S).
1 possible match (shared part number, not a government interchangeability claim): 6740-01-137-6559. Verify interchangeability with system specifications before substitution.
Key specifications for 587979: Radius: 4.500 INCHES NOMINAL IN; Outside Diameter: 2.745 INCHES MINIMUM AND 2.755 INCHES MAXIMUM IN; Style Designator: CONCAVE; Material Document and Classification: QQ-S-633, FS1008 TO FS1010 FED SPEC SINGLE MATERIAL RESPONSE. 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.