The Spring,helical,extension, cataloged under National Stock Number 5360-01-398-4042, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5360-01-398-4042 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.651 INCHES MINIMUM AND 0.675 INCHES MAXIMUM IN |
| End Style | MACHINE LOOP BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Opening Width | 1.200 INCHES NOMINAL BOTH ENDS IN |
| Material Document and Classification | SAE J178 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 5.426 INCHES NOMINAL IN |
| Spring Deflection Rate | 3.500 POUNDS PER INCH NOMINAL LBS |
| Coil to Hook Inside Length | 1.600 INCHES MINIMUM AND 1.800 INCHES MAXIMUM BOTH ENDS IN |
| Inside Diameter | 0.537 INCHES NOMINAL IN |
| Stock Diameter | 0.0622 INCHES MINIMUM AND 0.0638 INCHES MAXIMUM IN |
| Coil Quantity | 30-3/4 |
| Coil Helix Direction | LEFT-HAND OR RIGHT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.300 INCHES MINIMUM AND 0.500 INCHES MAXIMUM 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 |
|---|---|
| 2384994 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-01-398-4042 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-01-398-4042: Spring Free Outside Diameter: 0.651 INCHES MINIMUM AND 0.675 INCHES MAXIMUM IN; End Style: MACHINE LOOP BOTH ENDS; Design Type: CLOSED; Style Designator: CYLINDRICAL. 15 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.