The Spring,helical,compression, cataloged under National Stock Number 5360-01-656-4403, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Coil Spring Inc. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 — Coil, Flat, Leaf, and Wire Springs (FSG 53) |
| Manufacturers | Jlg Industries (australia) Jlg Australia Pty Limited (CAGE Z1DF2); Oshkosh Defense Llc (CAGE 75Q65); Oshkosh Coil Spring Inc (CAGE 0ZKB4) |
| Parameter | Value |
|---|---|
| NSN | 5360-01-656-4403 |
| Primary Part Number | 3681221 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Oshkosh Coil Spring Inc |
| 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 |
|---|---|
| 3681221 | Jlg Industries (australia) Jlg Australia Pty Limited (AUS) |
| 3681221 | Oshkosh Defense Llc (USA) |
| 3681221 PRIMARY | Oshkosh Coil Spring Inc (USA) |
| Reference | Meaning |
|---|---|
| 3681221 | 5/9 Secondary reference Jlg Industries (australia) Jlg Industries Inc |
NSN 5360-01-656-4403 is a Spring,helical,compression, manufactured by Oshkosh Coil Spring Inc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-656-4403 has 3 manufacturer part numbers on file: 3681221 (Jlg Industries (australia) Jlg Australia Pty Limited), 3681221 (Oshkosh Defense Llc), 3681221 (Oshkosh Coil Spring Inc).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-728-8431. Verify interchangeability with system specifications before substitution.
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.