The Spring,helical,torsion, cataloged under National Stock Number 5360-00-019-6857, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-019-6857 |
| Primary Part Number | 531AS104-1 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Spring Free Outside Diameter | 1.000 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN |
| End Style | OFFSET HALF LOOP, LEFT END SECOND END |
| End Style | REDUCED LOOP END FIRST END |
| Center Section Width | 0.562 INCHES NOMINAL IN |
| Style Designator | SINGLE TORSION RIGHT HAND |
| Spring Free Length | 0.812 INCHES NOMINAL IN |
| Inside Diameter | 0.750 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN |
| Coil Quantity | 2-1/2 |
| Center Loop Radius | 0.156 INCHES NOMINAL IN |
| End Length From Second Bend to Third Bend or End | 0.531 INCHES NOMINAL FIRST END IN |
| End Length From Second Bend to Third Bend or End | 0.375 INCHES NOMINAL SECOND END IN |
| End Angular Relationship | END W/LH HELIX OF COIL ANGLED TO CENTER SECTION AND END W/RH HELIX OF COIL ANGLED TO CENTER SECTION |
| Hook Radius | 0.281 INCHES NOMINAL FIRST END IN |
| Hook Radius | 0.250 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 | F |
| Part Number | Manufacturer |
|---|---|
| 531AS104-1 | Vertex Modernization and Sustainment Llc (USA) |
| 531AS104-1 | Lockheed Martin Aeroparts, Inc. Dba Lockheed Martin Aeroparts Inc (USA) |
| 531AS104-1 | Marvin Engineering Co, Inc (USA) |
| 531AS104-1 | Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems (rms) (USA) |
| 531AS104-1 | Solo Enterprise Corp. Dba Solo Enterprise Corp (USA) |
| 531AS104-1 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 531AS104-1 | Klune Industries, Inc. Div Pcc Aerostructures, Spanish Fork Dba Klune Industries (USA) |
| 531AS104-1 | Orlando Spring Corp (USA) |
| Reference | Meaning |
|---|---|
| 531AS104-1 | 5/9 Secondary reference Lockheed Martin Services, Llc |
| 531AS104-1 | 5/2 Secondary reference U.S. Government activity |
NSN 5360-00-019-6857 is a Spring,helical,torsion, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-019-6857 has 8 manufacturer part numbers on file: 531AS104-1 (Vertex Modernization and Sustainment Llc), 531AS104-1 (Lockheed Martin Aeroparts, Inc. Dba Lockheed Martin Aeroparts Inc), 531AS104-1 (Marvin Engineering Co, Inc), 531AS104-1 (Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems (rms)), 531AS104-1 (Solo Enterprise Corp. Dba Solo Enterprise Corp) and 3 more.
Key specifications for 531AS104-1: Spring Free Outside Diameter: 1.000 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN; End Style: OFFSET HALF LOOP, LEFT END SECOND END; End Style: REDUCED LOOP END FIRST END; Center Section Width: 0.562 INCHES NOMINAL IN. 14 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.