The Spring,helical,torsion, cataloged under National Stock Number 5360-00-983-4061, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Breeze-Eastern Llc. Government technical data includes 8 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 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 | 5360-00-983-4061 |
| Primary Part Number | SP-631 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Breeze-Eastern Llc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.319 INCHES NOMINAL IN |
| Style Designator | SINGLE TORSION LEFT HAND |
| Material Document and Classification | AN-W-24,COND B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Inside Diameter | 0.219 INCHES NOMINAL IN |
| Coil Quantity | 2 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | 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 |
| Part Number | Manufacturer |
|---|---|
| SP-631 PRIMARY | Breeze-Eastern Llc (USA) |
NSN 5360-00-983-4061 is a Spring,helical,torsion, manufactured by Breeze-Eastern Llc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-983-4061 has 1 manufacturer part number on file: SP-631 (Breeze-Eastern Llc).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-492-6679. Verify interchangeability with system specifications before substitution.
Key specifications for SP-631: Spring Free Outside Diameter: 0.319 INCHES NOMINAL IN; Style Designator: SINGLE TORSION LEFT HAND; Material Document and Classification: AN-W-24,COND B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Inside Diameter: 0.219 INCHES NOMINAL IN. 8 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.