The Buckle, cataloged under National Stock Number 5340-01-398-4037, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-398-4037 |
| Item Name | Buckle |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Strap Accommodation Width | 0.5400 INCHES NOMINAL IN |
| Insignia | NOT INCLUDED |
| Material | STEEL OVERALL |
| Enameled Feature | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Reference | Meaning |
|---|---|
| BACS38J1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-398-4037 is a Buckle, classified under FSC 5340, Hardware, Commercial. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5340-01-670-0561. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-01-398-4037: Strap Accommodation Width: 0.5400 INCHES NOMINAL IN; Overall Length: 2.8200 INCHES NOMINAL IN; Overall Width: 0.8000 INCHES NOMINAL IN; Insignia: NOT INCLUDED. 4 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.