The Spring,helical,torsion, cataloged under National Stock Number 5360-01-476-0251, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-476-0251 |
| Primary Part Number | 74A670443-2001 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| End Style | STRAIGHT END BOTH ENDS |
| Style Designator | SINGLE TORSION LEFT HAND |
| Material Document and Classification | AMS5673 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.290 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN |
| Inside Diameter | 0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN |
| Coil Quantity | 6-1/4 |
| Coil Helix Direction | LEFT-HAND |
| Material | STEEL COMP 316 OVERALL |
| 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 |
|---|---|
| 74A670443-2001 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5360-01-476-0251 is a Spring,helical,torsion, manufactured by The Boeing Company Div Defense, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-476-0251 has 1 manufacturer part number on file: 74A670443-2001 (The Boeing Company Div Defense).
Key specifications for 74A670443-2001: Spring Free Outside Diameter: 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN; End Style: STRAIGHT END BOTH ENDS; Style Designator: SINGLE TORSION LEFT HAND; Material Document and Classification: AMS5673 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 9 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.