The Plug,expansion, cataloged under National Stock Number 5340-00-281-1443, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5340-00-281-1443 |
| Primary Part Number | 5282574 |
| Item Name | Plug,expansion |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Radius | 1.375 INCHES NOMINAL IN |
| Outside Diameter | 1.224 INCHES MINIMUM AND 1.226 INCHES MAXIMUM IN |
| Material Thickness | 0.076 INCHES NOMINAL IN |
| Height | 0.500 INCHES NOMINAL IN |
| Surface Treatment | ZINC |
| 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 |
|---|---|
| 5282574 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 663032 PRIMARY | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| 663032 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 663032 | 5/9 Secondary reference Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 |
NSN 5340-00-281-1443 is a Plug,expansion, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-281-1443 has 2 manufacturer part numbers on file: 5282574 (U S Army Tank Automotive Command Amsta-Im-Mm), 663032 (General Motors Corp).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-019-7193, 6520-01-099-4063. Verify interchangeability with system specifications before substitution.
Key specifications for 5282574: Radius: 1.375 INCHES NOMINAL IN; Outside Diameter: 1.224 INCHES MINIMUM AND 1.226 INCHES MAXIMUM IN; Material Thickness: 0.076 INCHES NOMINAL IN; Height: 0.500 INCHES NOMINAL IN. 6 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.