The Clamp,loop, cataloged under National Stock Number 5340-01-417-2557, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-417-2557 |
| Primary Part Number | 801-640994-10 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Style Designator | SINGLE LOOP |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.5400 INCHES NOMINAL IN |
| Material Thickness | 0.0625 INCHES NOMINAL IN |
| Center to Center Distance Between First and Second Holes | 0.3100 INCHES NOMINAL IN |
| Tongue Hole Type | ROUND, UNTHREADED |
| Material | NICKEL ALLOY OVERALL |
| Loop Inside Diameter | 0.5400 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 |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 801-6404994 FIND 10 | Naval Sea Systems Command (USA) |
| 801-640994-10 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 801-6404994-10 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5340-01-417-2557 is a Clamp,loop, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-417-2557 has 2 manufacturer part numbers on file: 801-6404994 FIND 10 (Naval Sea Systems Command), 801-640994-10 (Naval Sea Systems Command).
Key specifications for 801-640994-10: Style Designator: SINGLE LOOP; Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Diameter: 0.5400 INCHES NOMINAL IN; Overall Width: 0.3700 INCHES NOMINAL 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.