The Spring,helical,torsion, cataloged under National Stock Number 5360-00-558-3937, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Ward Leonard Ct Llc. Government technical data includes 13 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 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 | 5360-00-558-3937 |
| Primary Part Number | 16572-49-1 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.528 INCHES NOMINAL IN |
| End Style | STRAIGHT BEND END (RIGHT) FIRST END |
| End Style | ANGULAR END (RIGHT) SECOND END |
| Style Designator | SINGLE TORSION LEFT HAND |
| Spring Free Length | 0.170 INCHES NOMINAL IN |
| Inside Diameter | 0.427 INCHES NOMINAL IN |
| End Length From First Bend to Second Bend or End | 0.250 INCHES NOMINAL FIRST END IN |
| End Length From First Bend to Second Bend or End | 0.219 INCHES NOMINAL SECOND END IN |
| Coil Quantity | 2 |
| Surface Treatment | CADMIUM OVERALL |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL OVERALL |
| End Angular Relationship | ENDS ANGLED ONE TO OTHER |
| 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 |
|---|---|
| 16572-49-1 PRIMARY | Ward Leonard Ct Llc (USA) |
NSN 5360-00-558-3937 is a Spring,helical,torsion, manufactured by Ward Leonard Ct Llc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-558-3937 has 1 manufacturer part number on file: 16572-49-1 (Ward Leonard Ct Llc).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-676-3288. Verify interchangeability with system specifications before substitution.
Key specifications for 16572-49-1: Spring Free Outside Diameter: 0.528 INCHES NOMINAL IN; End Style: STRAIGHT BEND END (RIGHT) FIRST END; End Style: ANGULAR END (RIGHT) SECOND END; Style Designator: SINGLE TORSION LEFT HAND. 13 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.