The Spring,helical,compression, cataloged under National Stock Number 5360-01-231-4784, 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 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-231-4784 |
| Primary Part Number | SM-C-773540-29 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Lee Spring Company Llc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.240 INCHES NOMINAL IN |
| Load Rating | 1.980 POUNDS NOMINAL LBS |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Spring Solid Length | 0.188 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | ASTM A313 ASSN STD ALL MATERIAL RESPONSES OR AMS 5688 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.750 INCHES NOMINAL IN |
| Spring Deflection Rate | 4.700 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.196 INCHES NOMINAL IN |
| Stock Diameter | 0.022 INCHES NOMINAL IN |
| Spring Length Under Load | 0.188 INCHES NOMINAL IN |
| Spring Solid Outside Diameter | 0.240 INCHES NOMINAL IN |
| Coil Helix Direction | LEFT-HAND |
| Material | STEEL COMP 302 OR STEEL COMP 304 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 |
|---|---|
| SM-C-773540-29 | Lee Spring Company Llc (USA) |
| SM-C-773540-29 | Barnes Group Inc (USA) |
| Reference | Meaning |
|---|---|
| SM-C-773540-29 | 3/2 Design control — primary reference U.S. Government activity |
| SM-C-773540-29 | 5/9 Secondary reference U.S. Government activity |
NSN 5360-01-231-4784 is a Spring,helical,compression, manufactured by Lee Spring Company Llc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-231-4784 has 2 manufacturer part numbers on file: SM-C-773540-29 (Lee Spring Company Llc), SM-C-773540-29 (Barnes Group Inc).
Key specifications for SM-C-773540-29: Spring Free Outside Diameter: 0.240 INCHES NOMINAL IN; Load Rating: 1.980 POUNDS NOMINAL LBS; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Spring Solid Length: 0.188 INCHES NOMINAL IN. 14 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.