The Spring,helical,extension, cataloged under National Stock Number 5360-01-464-1589, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Colt's Manufacturing Company, Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5360-01-464-1589 |
| Primary Part Number | 64558 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Colt's Manufacturing Company, 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 |
|---|---|
| 64558 PRIMARY | Colt's Manufacturing Company, Llc (USA) |
NSN 5360-01-464-1589 is a Spring,helical,extension, manufactured by Colt's Manufacturing Company, Llc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-464-1589 has 1 manufacturer part number on file: 64558 (Colt's Manufacturing Company, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-489-0482. Verify interchangeability with system specifications before substitution.
Key specifications for 64558: End Item Identification: TYPE C8 5.56MM CARBINE MM. 0 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.