The Spring,helical,extension, cataloged under National Stock Number 5360-00-609-0673, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-609-0673 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 1.925 INCHES NOMINAL IN |
| End Style | MACHINE CUT-OFF FIRST END |
| End Style | SHORT HOOK SECOND END |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL W/ CONVEX ENDS |
| Material Document and Classification | MIL-W-6106 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Deflection Rate | 2.580 POUNDS PER INCH NOMINAL LBS |
| Coil to Hook Inside Length | 0.430 INCHES NOMINAL SECOND END IN |
| Coil Quantity | 8-5/8 |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 180.000 INCHES NOMINAL SECOND END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 29-6508 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-00-609-0673 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5977-01-495-7553. Verify interchangeability with system specifications before substitution.
Key specifications for 5360-00-609-0673: Spring Free Outside Diameter: 1.925 INCHES NOMINAL IN; End Style: MACHINE CUT-OFF FIRST END; End Style: SHORT HOOK SECOND END; Design Type: CLOSED. 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.