The Spring,helical,torsion, cataloged under National Stock Number 5360-00-390-1663, 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14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-390-1663 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.165 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | SPS-209,METHOD 1,CAG399643 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| End Style | STRAIGHT BEND END (RIGHT) SECOND END |
| End Style | ONE HOOK END FIRST END |
| Style Designator | SINGLE TORSION LEFT HAND |
| Material Document and Classification | AMS 5673,COMP 17-7PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.300 INCHES MAXIMUM IN |
| Inside Diameter | 0.145 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| End Length From First Bend to Second Bend or End | 0.565 INCHES NOMINAL OVERALL IN |
| Coil Quantity | 7 |
| Surface Treatment | PASSIVATE OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 631 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 |
|---|---|
| 29163 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-00-390-1663 is a Spring,helical,torsion, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 5310-01-186-7622, 5120-01-195-2721, 5998-01-317-4605. Verify interchangeability with system specifications before substitution.
Key specifications for 5360-00-390-1663: Spring Free Outside Diameter: 0.165 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN; Surface Treatment Document and Classification: SPS-209,METHOD 1,CAG399643 MFR REF SINGLE TREATMENT RESPONSE OVERALL; End Style: STRAIGHT BEND END (RIGHT) SECOND END; End Style: ONE HOOK END FIRST END. 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.