The Spring,helical,extension, cataloged under National Stock Number 5360-00-820-9671, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-820-9671 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.313 INCHES NOMINAL IN |
| Load Rating | 5.800 POUNDS NOMINAL LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | 6359-1,WESTINGHOUSE ELECTRIC CORP,DISTRIBUTION EQUIPMENT DIV MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 1.351 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.243 INCHES NOMINAL BOTH ENDS IN |
| Inside Diameter | 0.243 INCHES NOMINAL IN |
| Coil Quantity | 21-1/2 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hook Radius | 0.121 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 |
| Reference | Meaning |
|---|---|
| 445D668ITEM43 | 5/9 Secondary reference Westinghouse Electric Corp |
| S126A660H02 | 3/9 Design control — primary reference Westinghouse Electric Corp Control Business Unit |
| S126A660H02 | 5/9 Secondary reference Westinghouse Electric Corp |
NSN 5360-00-820-9671 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-00-820-9671: Spring Free Outside Diameter: 0.313 INCHES NOMINAL IN; Load Rating: 5.800 POUNDS NOMINAL LBS; End Style: SHORT TWISTED HOOK BOTH ENDS; Design Type: CLOSED. 13 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.