The Spring,helical,extension, cataloged under National Stock Number 5360-00-159-3810, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Services, Llc. Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-159-3810 |
| Primary Part Number | 3148028 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Lockheed Martin Services, Llc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.500 INCHES NOMINAL IN |
| Load Rating | 15.70 POUNDS NOMINAL LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 1.476 INCHES NOMINAL IN |
| Spring Deflection Rate | 26.000 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.374 INCHES NOMINAL IN |
| Spring Length Under Load | 1.920 INCHES NOMINAL IN |
| Coil Quantity | 7 |
| Surface Treatment | PASSIVATE OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 302 OVERALL |
| Hook Radius | 0.187 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 |
|---|---|
| 3148028 PRIMARY | Lockheed Martin Services, Llc (USA) |
NSN 5360-00-159-3810 is a Spring,helical,extension, manufactured by Lockheed Martin Services, Llc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-159-3810 has 1 manufacturer part number on file: 3148028 (Lockheed Martin Services, Llc).
Key specifications for 3148028: Spring Free Outside Diameter: 0.500 INCHES NOMINAL IN; Load Rating: 15.70 POUNDS NOMINAL LBS; End Style: SHORT TWISTED HOOK BOTH ENDS; Design Type: CLOSED. 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.