The Spring,helical,torsion, cataloged under National Stock Number 5360-00-663-3350, 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15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-663-3350 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.212 INCHES NOMINAL IN |
| End Style | OFFSET EYE SECOND END |
| End Style | STRAIGHT BEND END (LEFT) FIRST END |
| Style Designator | SINGLE TORSION RIGHT HAND |
| Material Document and Classification | QQ-W-470,COMP A AND B FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Spring Free Length | 0.375 INCHES NOMINAL IN |
| Inside Diameter | 0.156 INCHES NOMINAL IN |
| End Length From First Bend to Second Bend or End | 0.625 INCHES NOMINAL SECOND END IN |
| End Length From First Bend to Second Bend or End | 0.234 INCHES NOMINAL FIRST END IN |
| Coil Quantity | 12 |
| End Length From Coil Axis to First Bend | 0.250 INCHES NOMINAL OVERALL IN |
| Surface Treatment | TIN OVERALL |
| Coil Helix Direction | LEFT-HAND |
| Material | STEEL UNS K08500 AND STEEL OVERALL |
| 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 |
| Reference | Meaning |
|---|---|
| 56688 | 3/9 Design control — primary reference U.S. Government activity |
| SMB187514 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-00-663-3350 is a Spring,helical,torsion, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5365-01-235-7599. Verify interchangeability with system specifications before substitution.
Key specifications for 5360-00-663-3350: Spring Free Outside Diameter: 0.212 INCHES NOMINAL IN; End Style: OFFSET EYE SECOND END; End Style: STRAIGHT BEND END (LEFT) FIRST END; 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.