The Spring,helical,torsion, cataloged under National Stock Number 5360-01-020-3971, 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 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-020-3971 |
| Primary Part Number | SP-1261-1 |
| 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 | 0.644 INCHES NOMINAL IN |
| End Style | OFFSET HALF LOOP, RIGHT END OVERALL |
| End Length | 2.366 INCHES NOMINAL BOTH ENDS IN |
| Style Designator | SINGLE TORSION LEFT HAND |
| Spring Free Length | 0.288 INCHES NOMINAL IN |
| Inside Diameter | 0.500 INCHES NOMINAL IN |
| Coil Quantity | 3 |
| Coil Helix Direction | LEFT-HAND |
| Material | STEEL CORROSION RESISTING OVERALL |
| End Length From Second Bend to Third Bend or End | 0.031 INCHES NOMINAL OVERALL IN |
| End Angular Relationship | ENDS ANGLED ONE TO OTHER |
| Hook Radius | 0.094 INCHES NOMINAL OVERALL IN |
| 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 |
|---|---|
| 0000126101 | Breeze-Eastern Llc (USA) |
| SP-1261-1 PRIMARY | Breeze-Eastern Llc (USA) |
NSN 5360-01-020-3971 is a Spring,helical,torsion, manufactured by Breeze-Eastern Llc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-020-3971 has 2 manufacturer part numbers on file: 0000126101 (Breeze-Eastern Llc), SP-1261-1 (Breeze-Eastern Llc).
Key specifications for SP-1261-1: Spring Free Outside Diameter: 0.644 INCHES NOMINAL IN; End Style: OFFSET HALF LOOP, RIGHT END OVERALL; End Length: 2.366 INCHES NOMINAL BOTH ENDS IN; Style Designator: SINGLE TORSION LEFT HAND. 12 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.