The Spring,helical,extension, cataloged under National Stock Number 5360-01-290-9758, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-290-9758 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.580 INCHES NOMINAL IN |
| End Style | OFFSET HOOK CENTER BOTH ENDS |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 5.200 INCHES NOMINAL IN |
| Spring Deflection Rate | 16.000 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.436 INCHES NOMINAL IN |
| Coil Quantity | 16-1/4 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Hook Radius | 0.513 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 |
|---|---|
| 5-45-5041 | C/1 Advisory reference — outside the item-of-supply concept Drs Environmental Systems Inc |
| 5-45-5041 | 5/9 Secondary reference U.S. Government activity |
| 5-45-5041 | 5/9 Secondary reference Hoie Karl H & Co A/s |
| 5-45-5041 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-01-290-9758 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-01-290-9758: Spring Free Outside Diameter: 0.580 INCHES NOMINAL IN; End Style: OFFSET HOOK CENTER BOTH ENDS; Style Designator: CYLINDRICAL; Spring Free Length: 5.200 INCHES NOMINAL IN. 9 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.