The Spring,helical,extension, cataloged under National Stock Number 5360-00-703-9646, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-703-9646 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 1.062 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| End Style | SWIVEL HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL W/ CONVEX ENDS |
| Opening Width | 0.094 INCHES NOMINAL BOTH ENDS IN |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 3.596 INCHES NOMINAL IN |
| Coil Quantity | 22 |
| Coil Helix Direction | LEFT-HAND |
| Hook Radius | 0.188 INCHES NOMINAL BOTH ENDS 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 |
|---|---|
| 4676957 | 3/2 Design control — primary reference U.S. Government activity |
| 4676957 | 5/9 Secondary reference The Boeing Company |
NSN 5360-00-703-9646 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-00-703-9646: Spring Free Outside Diameter: 1.062 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 FED SPEC ALL TREATMENT RESPONSES OVERALL; End Style: SWIVEL HOOK BOTH ENDS; Design Type: CLOSED. 11 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.