The Clamp,loop, cataloged under National Stock Number 5340-00-057-9979, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5340-00-057-9979 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Style Designator | SINGLE LOOP |
| Material Document and Classification | MIL-M-20693,COMP A,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE BAND |
| Diameter | 0.167 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN |
| Material Thickness | 0.035 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN |
| Distance From Loop Center to Tongue End | 0.620 INCHES NOMINAL IN |
| Center to Center Distance Between Loop and Mounting Hole | 0.380 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Material | PLASTIC POLYHEXAMETHYLENE AMIDE BAND |
| Loop Inside Diameter | 0.250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| NAS1397R4B | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-00-057-9979 is a Clamp,loop, classified under FSC 5340, Hardware, Commercial. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5340-00-782-8737. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-00-057-9979: Style Designator: SINGLE LOOP; Material Document and Classification: MIL-M-20693,COMP A,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE BAND; Diameter: 0.167 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN; Overall Width: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM 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.