The Spring,helical,compression, cataloged under National Stock Number 5360-00-290-4952, 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 Corporation Div Rms - Mitchel Field. Government technical data includes 12 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 | 5360-00-290-4952 |
| Primary Part Number | 303081 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.258 INCHES NOMINAL IN |
| Load Rating | 1.010 POUNDS MINIMUM AND 1.250 POUNDS MAXIMUM LBS |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | MIL-S-6101 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 1.500 INCHES NOMINAL IN |
| Spring Deflection Rate | 1.350 POUNDS PER INCH MINIMUM AND 1.650 POUNDS PER INCH MAXIMUM LBS |
| Inside Diameter | 0.218 INCHES NOMINAL IN |
| Spring Length Under Load | 0.750 INCHES NOMINAL IN |
| Coil Quantity | 13 |
| Coil Helix Direction | LEFT-HAND |
| Material | STEEL 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 |
|---|---|
| 303081 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
NSN 5360-00-290-4952 is a Spring,helical,compression, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-290-4952 has 1 manufacturer part number on file: 303081 (Lockheed Martin Corporation Div Rms - Mitchel Field).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-341-3744. Verify interchangeability with system specifications before substitution.
Key specifications for 303081: Spring Free Outside Diameter: 0.258 INCHES NOMINAL IN; Load Rating: 1.010 POUNDS MINIMUM AND 1.250 POUNDS MAXIMUM LBS; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Style Designator: CYLINDRICAL. 12 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.