The Spring,helical,extension, cataloged under National Stock Number 5360-01-043-5559, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Cae Usa Inc.. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5360-01-043-5559 |
| Primary Part Number | 423997 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Cae Usa Inc. |
| Status | ACTIVE |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL 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 |
|---|---|
| 423997 PRIMARY | Cae Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| 423997 | 5/9 Secondary reference Raytheon Technical Services Company |
NSN 5360-01-043-5559 is a Spring,helical,extension, manufactured by Cae Usa Inc., classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-043-5559 has 1 manufacturer part number on file: 423997 (Cae Usa Inc.).
1 possible match (shared part number, not a government interchangeability claim): 9340-01-205-0216. Verify interchangeability with system specifications before substitution.
Key specifications for 423997: Coil Helix Direction: RIGHT-HAND OR LEFT-HAND; Material: STEEL OVERALL. 2 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.