The Spring,helical,extension, cataloged under National Stock Number 5360-01-185-4052, 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. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-185-4052 |
| Primary Part Number | LE-037C-4MW |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Lee Spring Company Llc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.250 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Load Rating | 8.500 POUNDS NOMINAL LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-470 FED SPEC 1ST MATERIAL RESPONSE OR AMS 5112 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Spring Free Length | 1.449 INCHES NOMINAL IN |
| Spring Deflection Rate | 11.000 POUNDS PER INCH NOMINAL LBS |
| Coil to Hook Inside Length | 0.176 INCHES NOMINAL BOTH ENDS IN |
| Inside Diameter | 0.176 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OR CADMIUM AND CHROMATE OR CADMIUM AND PHOSPHATE OVERALL |
| Coil Helix Direction | LEFT-HAND |
| Material | STEEL UNS K08500 OR STEEL COMP 1090 OVERALL |
| Hook Radius | 0.088 INCHES NOMINAL BOTH ENDS IN |
| 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 |
|---|---|
| LE-037C-4MW PRIMARY | Lee Spring Company Llc (USA) |
| E0240-037-1370M PRIMARY | Associated Spring Us, Llc Div Corry (USA) |
| Reference | Meaning |
|---|---|
| LE-037C-4MW | 5/9 Secondary reference U.S. Government activity |
NSN 5360-01-185-4052 is a Spring,helical,extension, manufactured by Lee Spring Company Llc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-185-4052 has 2 manufacturer part numbers on file: LE-037C-4MW (Lee Spring Company Llc), E0240-037-1370M (Associated Spring Us, Llc Div Corry).
Key specifications for LE-037C-4MW: Spring Free Outside Diameter: 0.250 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 FED SPEC ALL TREATMENT RESPONSES OVERALL; Load Rating: 8.500 POUNDS NOMINAL LBS; End Style: SHORT TWISTED HOOK BOTH ENDS. 15 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.