The Spring,helical,extension, cataloged under National Stock Number 5360-00-597-2255, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5360-00-597-2255 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.120 INCHES NOMINAL IN |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 1.250 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.405 INCHES NOMINAL FIRST END IN |
| Coil to Hook Inside Length | 0.490 INCHES NOMINAL SECOND END IN |
| Inside Diameter | 0.100 INCHES NOMINAL IN |
| Coil Quantity | 32 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | COPPER ALLOY 230 OR COPPER ALLOY 240 OR COPPER ALLOY 260 OR COPPER ALLOY 270 OR COPPER ALLOY 510 OR COPPER ALLOY 752 OR COPPER ALLOY 764 OR COPPER ALLOY 770 OR COPPER ALLOY 745 OR COPPER ALLOY 210 OR COPPER ALLOY 220 OR COPPER ALLOY 274 OR COPPER ALLOY 757 OVERALL |
| 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 |
|---|---|
| 518453 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5360-00-597-2255 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-00-597-2255: Spring Free Outside Diameter: 0.120 INCHES NOMINAL IN; Design Type: CLOSED; Style Designator: CYLINDRICAL; Spring Free Length: 1.250 INCHES NOMINAL IN. 10 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.