The Spring,helical,torsion, cataloged under National Stock Number 5360-01-443-5557, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 12 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 | 5360-01-443-5557 |
| Primary Part Number | 120-6603509FNDPWY-A9 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Spring Free Outside Diameter | 1.625 INCHES NOMINAL IN |
| End Style | STRAIGHT OFFSET BOTH ENDS |
| End Length | 0.560 INCHES MINIMUM AND 0.680 INCHES MAXIMUM BOTH ENDS IN |
| Style Designator | SINGLE TORSION RIGHT HAND |
| Material Document and Classification | ASTM A228 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 1.520 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN |
| Inside Diameter | 1.375 INCHES NOMINAL IN |
| Stock Diameter | 0.125 INCHES NOMINAL IN |
| Coil Quantity | 14 |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL UNS K08500 OVERALL |
| 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 |
|---|---|
| 120-6603509FNDPWY-A9 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5360-01-443-5557 is a Spring,helical,torsion, manufactured by Naval Sea Systems Command, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-443-5557 has 1 manufacturer part number on file: 120-6603509FNDPWY-A9 (Naval Sea Systems Command).
Key specifications for 120-6603509FNDPWY-A9: Spring Free Outside Diameter: 1.625 INCHES NOMINAL IN; End Style: STRAIGHT OFFSET BOTH ENDS; End Length: 0.560 INCHES MINIMUM AND 0.680 INCHES MAXIMUM BOTH ENDS IN; Style Designator: SINGLE TORSION RIGHT 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.