The Spring,helical,extension, cataloged under National Stock Number 5360-00-703-7290, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5360-00-703-7290 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.688 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Load Rating | 33.00 POUNDS NOMINAL LBS |
| End Style | MACHINED HALF LOOP BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.125 INCHES NOMINAL FIRST END IN |
| Opening Width | 2.000 INCHES NOMINAL SECOND END IN |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 4.752 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 2.250 INCHES NOMINAL SECOND END IN |
| Inside Diameter | 0.498 INCHES MINIMUM AND 0.622 INCHES MAXIMUM IN |
| Spring Length Under Load | 6.062 INCHES NOMINAL IN |
| Coil Quantity | 18 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Hook Radius | 0.125 INCHES NOMINAL FIRST END IN |
| Hook Radius | 0.250 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 |
|---|---|
| 4677864 | 5/9 Secondary reference The Boeing Company |
| 4677864 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-00-703-7290 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-00-703-7290: Spring Free Outside Diameter: 0.688 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 FED SPEC ALL TREATMENT RESPONSES OVERALL; Load Rating: 33.00 POUNDS NOMINAL LBS; End Style: MACHINED HALF LOOP BOTH ENDS. 17 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.