The Spring,helical,compression, cataloged under National Stock Number 5360-00-950-1900, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Steward Machine Co Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-950-1900 |
| Primary Part Number | 591-613 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Steward Machine Co Inc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 1.437 INCHES NOMINAL IN |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Spring Solid Length | 1.687 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-390,TEMPER C FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 4.062 INCHES NOMINAL IN |
| Inside Diameter | 1.141 INCHES NOMINAL IN |
| Coil Quantity | 10-1/2 |
| Surface Treatment | CADMIUM OVERALL |
| Coil Helix Direction | RIGHT-HAND |
| Material | NICKEL ALLOY 600 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 |
|---|---|
| 591-613 PRIMARY | Steward Machine Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 591-613 | 3/9 Design control — primary reference Hardie-Tynes Co., Inc. |
| 60-591PC613 | 5/9 Secondary reference Hardie-Tynes Co., Inc. |
| 60-620PC613 | 5/9 Secondary reference Hardie-Tynes Co., Inc. |
NSN 5360-00-950-1900 is a Spring,helical,compression, manufactured by Steward Machine Co Inc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-950-1900 has 1 manufacturer part number on file: 591-613 (Steward Machine Co Inc).
Key specifications for 591-613: Spring Free Outside Diameter: 1.437 INCHES NOMINAL IN; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Spring Solid Length: 1.687 INCHES NOMINAL IN; Style Designator: CYLINDRICAL. 11 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.