The Spring,helical,compression, cataloged under National Stock Number 5360-01-640-8673, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 — Coil, Flat, Leaf, and Wire Springs (FSG 53) |
| Manufacturers | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (CAGE 0ASY6) |
| Parameter | Value |
|---|---|
| NSN | 5360-01-640-8673 |
| Primary Part Number | M4171-21-BP |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| M4171-21-BP PRIMARY | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (USA) |
| Reference | Meaning |
|---|---|
| M4133-2731 REV H ITEM 21 | C/1 Advisory reference — outside the item-of-supply concept Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc |
NSN 5360-01-640-8673 is a Spring,helical,compression, manufactured by Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-640-8673 has 1 manufacturer part number on file: M4171-21-BP (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc).
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.