The Spring,helical,extension, cataloged under National Stock Number 5360-00-070-4350, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-070-4350 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.312 INCHES NOMINAL IN |
| Load Rating | 0.250 POUNDS NOMINAL LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 1.040 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.438 INCHES NOMINAL FIRST END IN |
| Coil to Hook Inside Length | 0.398 INCHES NOMINAL SECOND END IN |
| Inside Diameter | 0.267 INCHES NOMINAL IN |
| Spring Length Under Load | 1.188 INCHES NOMINAL IN |
| Coil Quantity | 8 |
| Coil Helix Direction | LEFT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.062 INCHES NOMINAL FIRST END IN |
| Hook Radius | 0.272 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 |
|---|---|
| 412A290 PART 1 | 5/9 Secondary reference General Electric Company |
| 0412A0290 | 3/9 Design control — primary reference General Electric Co Switchgear and Control Division of Apparatus Group |
| 0412A0290 | 5/9 Secondary reference General Electric Company |
NSN 5360-00-070-4350 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-00-070-4350: Spring Free Outside Diameter: 0.312 INCHES NOMINAL IN; Load Rating: 0.250 POUNDS NOMINAL LBS; End Style: SHORT TWISTED HOOK BOTH ENDS; Design Type: CLOSED. 15 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.