The Spring,helical,torsion, cataloged under National Stock Number 5360-01-155-4271, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Dutton-Lainson Company. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5360-01-155-4271 |
| Primary Part Number | 204363 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Dutton-Lainson Company |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.965 INCHES NOMINAL IN |
| Style Designator | SINGLE TORSION LEFT HAND |
| Spring Free Length | 0.900 INCHES NOMINAL IN |
| Inside Diameter | 0.875 INCHES NOMINAL IN |
| Coil Quantity | 2 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| 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 |
NSN 5360-01-155-4271 is a Spring,helical,torsion, manufactured by Dutton-Lainson Company, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-155-4271 has 2 manufacturer part numbers on file: 204363 (Dutton-Lainson Company), 2AA634 (Oshkosh Defense Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-321-8117. Verify interchangeability with system specifications before substitution.
Key specifications for 204363: Spring Free Outside Diameter: 0.965 INCHES NOMINAL IN; Style Designator: SINGLE TORSION LEFT HAND; Spring Free Length: 0.900 INCHES NOMINAL IN; Inside Diameter: 0.875 INCHES NOMINAL IN. 7 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.