The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-140-3702, 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 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-140-3702 |
| Primary Part Number | 74A425039-2005 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| FSC Application Data | AIRCRAFT LANDING GEAR |
| Body Outside Diameter | 0.750 INCHES NOMINAL IN |
| Style Designator | IRREGULAR |
| Material Document and Classification | QQ-A-225/9, ALLOY 7075, T7351 FED SPEC SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.257 INCHES NOMINAL IN |
| Body Inside Diameter | 0.660 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| 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 | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 74A425039-2005 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| 74A425039-2005 PRIMARY | The Boeing Company Div Defense (USA) |
| 74A425039-2003 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 10112719 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A425039-2003 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 74A425039-2001 | 5/9 Secondary reference The Boeing Company Div Defense |
NSN 5340-01-140-3702 is a Retainer,helical Compression Spr, manufactured by The Boeing Company Div Defense, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-140-3702 has 3 manufacturer part numbers on file: 74A425039-2005 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems), 74A425039-2005 (The Boeing Company Div Defense), 74A425039-2003 (The Boeing Company Div Defense).
Key specifications for 74A425039-2005: Overall Height: 1.800 INCHES NOMINAL IN; FSC Application Data: AIRCRAFT LANDING GEAR; Body Outside Diameter: 0.750 INCHES NOMINAL IN; Style Designator: IRREGULAR. 8 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.