The Spring,helical,extension, cataloged under National Stock Number 5360-00-756-5098, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-756-5098 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.500 INCHES NOMINAL IN |
| End Style | DOBBY HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Opening Width | 1.400 INCHES NOMINAL SECOND END IN |
| Opening Width | 1.570 INCHES NOMINAL FIRST END IN |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 6.126 INCHES NOMINAL IN |
| Spring Deflection Rate | 9.100 POUNDS PER INCH NOMINAL LBS |
| Coil to Hook Inside Length | 2.000 INCHES NOMINAL SECOND END IN |
| Coil to Hook Inside Length | 2.170 INCHES NOMINAL FIRST END IN |
| Inside Diameter | 0.374 INCHES NOMINAL IN |
| Coil Quantity | 29-1/2 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL UNS K08500 OVERALL |
| Hook Radius | 0.120 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 |
|---|---|
| 756353-101 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-00-756-5098 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-00-756-5098: Spring Free Outside Diameter: 0.500 INCHES NOMINAL IN; End Style: DOBBY HOOK BOTH ENDS; Design Type: CLOSED; Style Designator: CYLINDRICAL. 16 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.