The Spring,helical,extension, cataloged under National Stock Number 5360-00-049-7501, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-049-7501 |
| Primary Part Number | S1320681 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.445 INCHES NOMINAL IN |
| Load Rating | 17.20 POUNDS NOMINAL LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 2.267 INCHES NOMINAL IN |
| Inside Diameter | 0.313 INCHES NOMINAL IN |
| Spring Length Under Load | 2.562 INCHES NOMINAL IN |
| Coil Quantity | 16 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.156 INCHES NOMINAL BOTH ENDS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| S1320681 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| S1320681 | 3/9 Design control — primary reference Westinghouse Electric Corp Control Business Unit |
NSN 5360-00-049-7501 is a Spring,helical,extension, manufactured by Westinghouse Electric Corp, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-049-7501 has 1 manufacturer part number on file: S1320681 (Westinghouse Electric Corp).
Key specifications for S1320681: Spring Free Outside Diameter: 0.445 INCHES NOMINAL IN; Load Rating: 17.20 POUNDS NOMINAL LBS; End Style: SHORT TWISTED HOOK BOTH ENDS; Design Type: CLOSED. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.