The Spring,helical,extension, cataloged under National Stock Number 5360-01-483-4539, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5360-01-483-4539 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.650 INCHES NOMINAL IN |
| End Style | MACHINE FULL HOOK BOTH ENDS |
| Design Type | OPEN |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.320 INCHES NOMINAL BOTH ENDS IN |
| Spring Free Length | 2.325 INCHES NOMINAL IN |
| Spring Deflection Rate | 51.700 POUNDS PER INCH NOMINAL LBS |
| Coil to Hook Inside Length | 0.320 INCHES NOMINAL BOTH ENDS IN |
| Inside Diameter | 0.470 INCHES NOMINAL IN |
| Stock Diameter | 0.090 INCHES NOMINAL IN |
| End Hook Length | 0.640 INCHES NOMINAL BOTH ENDS IN |
| Distance Between Ends | 2.820 INCHES NOMINAL IN |
| Spring Length Under Load | 4.290 INCHES NOMINAL IN |
| Coil Quantity | 15-3/4 |
| Coil Helix Direction | LEFT-HAND OR RIGHT-HAND |
| Bore Diameter | 0.370 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| End Angular Relationship | ENDS ANGLED ONE TO OTHER |
| Hook Radius | 0.190 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 |
|---|---|
| 756324-101 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-01-483-4539 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-01-483-4539: Spring Free Outside Diameter: 0.650 INCHES NOMINAL IN; End Style: MACHINE FULL HOOK BOTH ENDS; Design Type: OPEN; Style Designator: CYLINDRICAL. 19 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.