The Spring,helical,extension, cataloged under National Stock Number 5360-01-528-4508, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5360-01-528-4508 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.500 INCHES NOMINAL IN |
| Coil Helix Direction | LEFT-HAND OR RIGHT-HAND |
| Material | STEEL OR STEEL CORROSION RESISTING OVERALL |
| Stock Thickness | 0.063 INCHES NOMINAL 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 |
|---|---|
| E0500-063-5000 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-01-528-4508 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
Key specifications for 5360-01-528-4508: Spring Free Outside Diameter: 0.500 INCHES NOMINAL IN; Special Features: EXTENDED LENGTH IS 9.04 INCHES WITH A LOAD RATE OF 18.8 POUNDS AND A SPRING RATE OF 4.2 POUNDS PER INCH. FREE LENGTH IS 5.00 INCHES. THE ENDS ARE FULL TWIST LOOP. IF USING THE STAINLESS STEEL MUST MULTIPLY BY .833 TO GET ACCURATE LOAD RATE. LBS; Part Name Assigned by Controlling Agency: EXTENTION SPRING; End Item Identification: RMV ASSY, UNIT 21, AN/WLD-A (V). 4 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.