The Spring,helical,extension, cataloged under National Stock Number 5360-01-485-2128, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Dover Corp Groen Div. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-485-2128 |
| Primary Part Number | 54599 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Dover Corp Groen Div |
| Status | ACTIVE |
| End Style | OFFSET EXTENDED LOOP FIRST END |
| End Style | RIGHT ANGLE HOOK SECOND END |
| Design Type | HELPER SPRING |
| Style Designator | CYLINDRICAL |
| Coil Quantity | 3 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL CORROSION RESISTING OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 54599 PRIMARY | Dover Corp Groen Div (USA) |
NSN 5360-01-485-2128 is a Spring,helical,extension, manufactured by Dover Corp Groen Div, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-485-2128 has 1 manufacturer part number on file: 54599 (Dover Corp Groen Div).
Key specifications for 54599: End Style: OFFSET EXTENDED LOOP FIRST END; End Style: RIGHT ANGLE HOOK SECOND END; Design Type: HELPER SPRING; Style Designator: CYLINDRICAL. 7 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.