The Spring,helical,extension, cataloged under National Stock Number 5360-01-121-8754, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-121-8754 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.360 INCHES NOMINAL IN |
| Load Rating | 10.200 POUNDS MAXIMUM LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 2.840 INCHES NOMINAL IN |
| Spring Deflection Rate | 4.100 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.270 INCHES NOMINAL IN |
| Stock Diameter | 0.045 INCHES NOMINAL IN |
| Spring Length Under Load | 5.020 INCHES MAXIMUM IN |
| Coil Quantity | 48 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL UNS K08500 OVERALL |
| Hook Radius | 0.135 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 |
|---|---|
| MS24586-135 | 2/2 Government specification standardization U.S. Government activity |
NSN 5360-01-121-8754 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-01-121-8754: Spring Free Outside Diameter: 0.360 INCHES NOMINAL IN; Load Rating: 10.200 POUNDS MAXIMUM LBS; End Style: SHORT TWISTED HOOK BOTH ENDS; Design Type: CLOSED. 15 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.