The Spring,helical,extension, cataloged under National Stock Number 5360-00-328-0887, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-328-0887 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.340 INCHES MAXIMUM IN |
| Load Rating | 3.490 POUNDS NOMINAL LBS |
| End Style | MACHINE FULL HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | MIL-W-6101 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 1.460 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.260 INCHES NOMINAL BOTH ENDS IN |
| Inside Diameter | 0.274 INCHES MAXIMUM IN |
| Spring Length Under Load | 2.270 INCHES NOMINAL IN |
| Coil Quantity | 18 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.130 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 |
|---|---|
| 30-2965 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-00-328-0887 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4320-00-398-8398, 2995-01-562-2595. Verify interchangeability with system specifications before substitution.
Key specifications for 5360-00-328-0887: Spring Free Outside Diameter: 0.340 INCHES MAXIMUM IN; Load Rating: 3.490 POUNDS NOMINAL LBS; End Style: MACHINE FULL HOOK BOTH ENDS; Design Type: CLOSED. 14 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.