The Spring,helical,torsion, cataloged under National Stock Number 5360-00-290-4955, 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15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-290-4955 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.6837 INCHES NOMINAL IN |
| End Length | 1.062 INCHES NOMINAL BOTH ENDS IN |
| Center Section Width | 0.465 INCHES NOMINAL IN |
| Style Designator | SINGLE TORSION RIGHT HAND |
| Material Document and Classification | MIL-W-6101 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.510 INCHES NOMINAL IN |
| First Bend Radius | 2.250 INCHES NOMINAL OVERALL IN |
| Coil Axis to Center Section Distance | 0.7675 INCHES NOMINAL IN |
| Inside Diameter | 0.594 INCHES NOMINAL IN |
| Coil Quantity | 3 |
| Surface Treatment | CADMIUM OVERALL |
| Center Loop Radius | 0.094 INCHES NOMINAL IN |
| Coil Helix Direction | LEFT-HAND |
| Center Tangent Angle | 55.0 DEGREES NOMINAL |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 44A28356 | 5/9 Secondary reference U.S. Government activity |
| 44A28356 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-00-290-4955 is a Spring,helical,torsion, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-00-290-4955: Spring Free Outside Diameter: 0.6837 INCHES NOMINAL IN; End Length: 1.062 INCHES NOMINAL BOTH ENDS IN; Center Section Width: 0.465 INCHES NOMINAL IN; Style Designator: SINGLE TORSION RIGHT HAND. 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.