The Spring,helical,extension, cataloged under National Stock Number 5360-01-353-5179, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Lee Spring Company Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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,extension |
| FSC / FSG | 5360 — Coil, Flat, Leaf, and Wire Springs (FSG 53) |
| Manufacturers | Lee Spring Company Llc (CAGE 1A699) |
| Parameter | Value |
|---|---|
| NSN | 5360-01-353-5179 |
| Primary Part Number | LE-020B-3MW |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Lee Spring Company Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| LE-020B-3MW PRIMARY | Lee Spring Company Llc (USA) |
| Reference | Meaning |
|---|---|
| 888491 | 5/9 Secondary reference Nai Technologies Inc |
| LE-020B-3 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| LC-026C-2 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 888491 | 5/9 Secondary reference North Atlantic Industries, Inc. Dba North Atlantic Industries |
| LE-020B-3MW | 3/9 Design control — primary reference U.S. Government activity |
NSN 5360-01-353-5179 is a Spring,helical,extension, manufactured by Lee Spring Company Llc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-353-5179 has 1 manufacturer part number on file: LE-020B-3MW (Lee Spring Company Llc).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-561-4323. 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.