The Clamp,loop, cataloged under National Stock Number 5340-01-591-2579, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 5340-01-591-2579 |
| Primary Part Number | AS3257-07 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Cushioning Environmental Protection | CORROSION RESISTANT AND HEAT |
| Material Diameter | 0.046 INCHES MINIMUM AND 0.056 INCHES MAXIMUM IN |
| Style Designator | SINGLE LOOP |
| Material Document and Classification | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE BAND |
| Material Document and Classification | AMS 5697 ASSN STD SINGLE MATERIAL RESPONSE CUSHION |
| Material Thickness | 0.046 INCHES MINIMUM AND 0.056 INCHES MAXIMUM IN |
| Material | STEEL COMP 304 BAND |
| Material | STEEL CORROSION RESISTING CUSHION |
| Loop Inside Diameter | 0.562 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 |
| Part Number | Manufacturer |
|---|---|
| AS3257-07 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| SAE-AS1553 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AS3257-07 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5340-01-591-2579 is a Clamp,loop, manufactured by Sae International Dba Sae International, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-591-2579 has 1 manufacturer part number on file: AS3257-07 (Sae International Dba Sae International).
6 possible matches (shared part number, not a government interchangeability claim): 5340-01-591-2580, 5340-01-591-2583, 5340-01-591-2586. Verify interchangeability with system specifications before substitution.
Key specifications for AS3257-07: Cushioning Environmental Protection: CORROSION RESISTANT AND HEAT; Material Diameter: 0.046 INCHES MINIMUM AND 0.056 INCHES MAXIMUM IN; Style Designator: SINGLE LOOP; Material Document and Classification: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE BAND. 9 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.