The Buckle, cataloged under National Stock Number 5340-01-159-3879, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-159-3879 |
| Item Name | Buckle |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Strap Accommodation Width | 1.045 INCHES NOMINAL IN |
| Material Document and Classification | QQ-B-613, ALLOY 260, 1/4H FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-613, ALLOY 268, 1/4H FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Insignia | NOT INCLUDED |
| Nondefinitive Spec/std Data | 4 TYPE AND 1 CLASS AND 1IN SIZE IN |
| Color | BLACK |
| Material | COPPER ALLOY 260 OR COPPER ALLOY 268 OVERALL |
| Enameled Feature | 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 |
|---|---|
| MIL-B-543 | 4/1 Identification reference U.S. Government activity |
NSN 5340-01-159-3879 is a Buckle, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-159-3879: Strap Accommodation Width: 1.045 INCHES NOMINAL IN; Material Document and Classification: QQ-B-613, ALLOY 260, 1/4H FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-613, ALLOY 268, 1/4H FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Overall Length: 1.625 INCHES NOMINAL IN; Overall Width: 1.469 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.