The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-125-8239, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. 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 | 5340-01-125-8239 |
| Primary Part Number | 74A670501-2001 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| FSC Application Data | INTERLOCK,AILERON WING FOLD SYSTEM |
| First Step Diameter | 0.6700 INCHES NOMINAL IN |
| End Diameter | 0.4380 INCHES NOMINAL IN |
| Distance From End to First Step | 0.0700 INCHES NOMINAL IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Material Document and Classification | QQ-A-225/9, ALLOY 7075, T7351 FED SPEC SINGLE MATERIAL RESPONSE |
| Spherical Seat Top Radius | 0.0600 INCHES NOMINAL IN |
| Bore Diameter | 0.2500 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 7075 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 74A670501-2001 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5340-01-125-8239 is a Seat,helical Compression Spring, manufactured by The Boeing Company Div Defense, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-125-8239 has 1 manufacturer part number on file: 74A670501-2001 (The Boeing Company Div Defense).
Key specifications for 74A670501-2001: Overall Height: 0.1200 INCHES NOMINAL IN; FSC Application Data: INTERLOCK,AILERON WING FOLD SYSTEM; First Step Diameter: 0.6700 INCHES NOMINAL IN; End Diameter: 0.4380 INCHES NOMINAL IN. 10 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.