The Spring,helical,torsion, cataloged under National Stock Number 5360-01-641-7427, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-641-7427 |
| Primary Part Number | 167-8396978 ITEM 28 |
| 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 | 4.250 INCHES NOMINAL IN |
| End Style | ONE HOOK END FIRST END |
| End Length | 4.000 INCHES NOMINAL FIRST END IN |
| Style Designator | SINGLE TORSION LEFT HAND |
| Material Document and Classification | ASTM A313, TY-631, COLD DRAWN, COND-C ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 6.531 INCHES NOMINAL IN |
| Inside Diameter | 3.000 INCHES NOMINAL IN |
| Stock Diameter | 0.625 INCHES NOMINAL IN |
| Coil Quantity | 9 |
| Coil Helix Direction | LEFT-HAND |
| Material | STEEL COMP 631 OVERALL |
| End Angular Relationship | END W/LH HELIX OF COIL PARALLEL TO CENTER SECTION |
| 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 |
|---|---|
| 167-8396978 ITEM 28 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 167-8396978 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5360-01-641-7427 is a Spring,helical,torsion, manufactured by Naval Sea Systems Command, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-641-7427 has 1 manufacturer part number on file: 167-8396978 ITEM 28 (Naval Sea Systems Command).
Key specifications for 167-8396978 ITEM 28: Spring Free Outside Diameter: 4.250 INCHES NOMINAL IN; End Style: ONE HOOK END FIRST END; End Length: 4.000 INCHES NOMINAL FIRST END 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.