The Spring,helical,torsion, cataloged under National Stock Number 5360-01-249-4416, 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 11 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 | 5360-01-249-4416 |
| Primary Part Number | 75A321634-2001 |
| 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 | 0.906 INCHES NOMINAL IN |
| Center Section Width | 0.506 INCHES NOMINAL IN |
| Style Designator | SINGLE TORSION RIGHT HAND |
| Material Document and Classification | AMS 5678 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 1.125 INCHES NOMINAL IN |
| Coil Axis to Center Section Distance | 2.787 INCHES NOMINAL IN |
| Inside Diameter | 0.780 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN |
| Coil Quantity | 12 |
| Center Loop Radius | 0.190 INCHES NOMINAL IN |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| End Angular Relationship | ENDS PARALLEL 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 |
|---|---|
| 75A321634-2001 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5360-01-249-4416 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 5360-01-249-4416 has 1 manufacturer part number on file: 75A321634-2001 (The Boeing Company Div Defense).
Key specifications for 75A321634-2001: Spring Free Outside Diameter: 0.906 INCHES NOMINAL IN; Center Section Width: 0.506 INCHES NOMINAL IN; Style Designator: SINGLE TORSION RIGHT HAND; Material Document and Classification: AMS 5678 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 11 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.