The Spring,helical,extension, cataloged under National Stock Number 5360-01-491-2317, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Barnes Group Inc. Government technical data includes 10 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 | 5360-01-491-2317 |
| Primary Part Number | E0360-055-2750S |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Barnes Group Inc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 9.1 MILLIMETERS NOMINAL MM |
| Load Rating | 14.66 POUNDS NOMINAL LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 69.8 MILLIMETERS NOMINAL MM |
| Inside Diameter | 6.3 MILLIMETERS NOMINAL MM |
| Spring Length Under Load | 103.4 MILLIMETERS NOMINAL MM |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 302 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 |
|---|---|
| E0360-055-2750S PRIMARY | Barnes Group Inc (USA) |
NSN 5360-01-491-2317 is a Spring,helical,extension, manufactured by Barnes Group Inc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-491-2317 has 1 manufacturer part number on file: E0360-055-2750S (Barnes Group Inc).
Key specifications for E0360-055-2750S: Spring Free Outside Diameter: 9.1 MILLIMETERS NOMINAL MM; Load Rating: 14.66 POUNDS NOMINAL LBS; End Style: SHORT TWISTED HOOK BOTH ENDS; Design Type: CLOSED. 10 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.