The Spring,helical,torsion, cataloged under National Stock Number 5360-00-689-6850, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Metadure Parts & Sales, Inc. Dba Worldwide Aeronautical Components. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5360-00-689-6850 |
| Primary Part Number | 311538 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Metadure Parts & Sales, Inc. Dba Worldwide Aeronautical Components |
| Status | ACTIVE |
| Spring Free Outside Diameter | 4.372 INCHES NOMINAL IN |
| End Style | SHORT HOOK, END OVERALL |
| End Length | 1.595 INCHES MINIMUM AND 1.624 INCHES MAXIMUM BOTH ENDS IN |
| Style Designator | SINGLE TORSION LEFT HAND |
| Spring Free Length | 4.310 INCHES MAXIMUM IN |
| Inside Diameter | 3.846 INCHES NOMINAL IN |
| Coil Quantity | 14 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 6150 OVERALL |
| End Angular Relationship | ENDS PARALLEL ONE TO OTHER |
| 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 |
|---|---|
| 311538 PRIMARY | Metadure Parts & Sales, Inc. Dba Worldwide Aeronautical Components (USA) |
| Reference | Meaning |
|---|---|
| 311538 | 5/9 Secondary reference Vibratech Inc |
NSN 5360-00-689-6850 is a Spring,helical,torsion, manufactured by Metadure Parts & Sales, Inc. Dba Worldwide Aeronautical Components, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-689-6850 has 1 manufacturer part number on file: 311538 (Metadure Parts & Sales, Inc. Dba Worldwide Aeronautical Components).
1 possible match (shared part number, not a government interchangeability claim): 5315-01-359-1271. Verify interchangeability with system specifications before substitution.
Key specifications for 311538: Spring Free Outside Diameter: 4.372 INCHES NOMINAL IN; End Style: SHORT HOOK, END OVERALL; End Length: 1.595 INCHES MINIMUM AND 1.624 INCHES MAXIMUM BOTH ENDS IN; Style Designator: SINGLE TORSION LEFT HAND. 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.