The Spring,helical,extension, cataloged under National Stock Number 5360-01-321-3264, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5360-01-321-3264 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.232 INCHES NOMINAL IN |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | ASTM A228 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.763 INCHES NOMINAL IN |
| Hook Width | 0.153 INCHES NOMINAL FIRST END IN |
| Coil to Hook Inside Length | 0.094 INCHES NOMINAL SECOND END IN |
| Coil to Hook Inside Length | 0.219 INCHES NOMINAL FIRST END IN |
| Inside Diameter | 0.188 INCHES NOMINAL IN |
| Coil Quantity | 18-1/4 |
| Coil Helix Direction | LEFT-HAND |
| Material | STEEL UNS K08500 OVERALL |
| Hook Radius | 0.094 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 |
|---|---|
| 212927-8 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5360-01-321-3264 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-01-321-3264: Spring Free Outside Diameter: 0.232 INCHES NOMINAL IN; Design Type: CLOSED; Style Designator: CYLINDRICAL; Material Document and Classification: ASTM A228 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 13 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.