The Spring,helical,torsion, cataloged under National Stock Number 5360-01-040-2157, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5360-01-040-2157 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 3.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | E.F.43-2,CAGE 82340 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| End Style | SHORT CONED END OVERALL |
| Style Designator | SINGLE TORSION LEFT HAND |
| Material Document and Classification | AMS 5644 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 5.450 INCHES NOMINAL IN |
| Inside Diameter | 2.500 INCHES NOMINAL IN |
| Coil Quantity | 20 |
| Surface Treatment | PASSIVATE OVERALL |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL COMP 631 OVERALL |
| End Angular Relationship | ENDS PARALLEL ONE TO OTHER |
| Hook Radius | 0.430 INCHES NOMINAL OVERALL IN |
| Hook Opening Width | 0.860 INCHES NOMINAL OVERALL 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 |
|---|---|
| 108321-1 | 5/9 Secondary reference U.S. Government activity |
| 108321-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-01-040-2157 is a Spring,helical,torsion, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-01-040-2157: Spring Free Outside Diameter: 3.500 INCHES NOMINAL IN; Surface Treatment Document and Classification: E.F.43-2,CAGE 82340 MFR REF SINGLE TREATMENT RESPONSE OVERALL; End Style: SHORT CONED END OVERALL; Style Designator: SINGLE TORSION LEFT HAND. 14 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.