The Spring,helical,torsion, cataloged under National Stock Number 5360-01-071-7529, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Telemechanics Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-071-7529 |
| Primary Part Number | 405643 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Telemechanics Inc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 1.438 INCHES NOMINAL IN |
| End Style | HALF HOOK OVERALL |
| Style Designator | SINGLE TORSION LEFT HAND |
| Spring Free Length | 0.503 INCHES NOMINAL IN |
| Inside Diameter | 1.190 INCHES NOMINAL IN |
| End Length From First Bend to Second Bend or End | 0.409 INCHES NOMINAL OVERALL IN |
| Coil Quantity | 3-1/2 |
| Surface Treatment | NICKEL OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL OVERALL |
| End Length From Second Bend to Third Bend or End | 0.409 INCHES NOMINAL OVERALL IN |
| End Angular Relationship | ENDS ANGLED ONE TO OTHER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 405643 PRIMARY | Telemechanics Inc (USA) |
| Reference | Meaning |
|---|---|
| 405643 | 5/9 Secondary reference American Telephone and Telegraph Co |
NSN 5360-01-071-7529 is a Spring,helical,torsion, manufactured by Telemechanics Inc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-071-7529 has 1 manufacturer part number on file: 405643 (Telemechanics Inc).
Key specifications for 405643: Spring Free Outside Diameter: 1.438 INCHES NOMINAL IN; End Style: HALF HOOK OVERALL; Style Designator: SINGLE TORSION LEFT HAND; Spring Free Length: 0.503 INCHES NOMINAL IN. 12 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.