The Spring,helical,extension, cataloged under National Stock Number 5360-00-320-4445, 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16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5360-00-320-4445 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Load Rating | 0.300 POUNDS MINIMUM AND 0.800 POUNDS MAXIMUM LBS |
| End Style | MACHINE LOOP SECOND END |
| End Style | OFSET HOOK FIRST END |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.100 INCHES NOMINAL BOTH ENDS IN |
| Opening Width | 0.100 INCHES NOMINAL FIRST END IN |
| Spring Free Length | 2.250 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.200 INCHES NOMINAL FIRST END IN |
| Coil to Hook Inside Length | 0.200 INCHES NOMINAL SECOND END IN |
| Inside Diameter | 0.166 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN |
| Spring Length Under Load | 4.900 INCHES NOMINAL IN |
| Coil Quantity | 80 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL 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 |
|---|---|
| 3-54008-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-00-320-4445 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-00-320-4445: Spring Free Outside Diameter: 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN; Load Rating: 0.300 POUNDS MINIMUM AND 0.800 POUNDS MAXIMUM LBS; End Style: MACHINE LOOP SECOND END; End Style: OFSET HOOK FIRST END. 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.