The Shaft,shouldered, cataloged under National Stock Number 3040-01-188-6521, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-188-6521 |
| Primary Part Number | 1534AS431 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| FSC Application Data | RACK,BOMB EJECTOR AIRCRAFT BRU-32A A |
| Second End External Thread Length | 0.283 INCHES NOMINAL IN |
| Step Quantity | 8 |
| First End Diameter | 0.1900 INCHES NOMINAL IN |
| Second End Diameter | 0.3750 INCHES NOMINAL IN |
| Largest Step Diameter | 0.781 INCHES NOMINAL IN |
| First End External Thread Length | 0.378 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| Criticality Code Justification | FEAT |
| Material Document and Classification | AMS5662 ASSN STD SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | NICKEL ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1534AS431 | Solo Enterprise Corp. Dba Solo Enterprise Corp (USA) |
| 1534AS431 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 1534AS431 | Bendon Gear and Machine, Inc (USA) |
| 1534AS431 | Klune Industries, Inc. Div Pcc Aerostructures, Spanish Fork Dba Klune Industries (USA) |
| 1534AS431 | Vertex Modernization and Sustainment Llc (USA) |
| 1534AS431 | Marvin Engineering Co, Inc (USA) |
| Reference | Meaning |
|---|---|
| D014189-501 | 5/9 Secondary reference Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries |
| D014189-501 | C/1 Advisory reference — outside the item-of-supply concept The Boeing Company |
| 10104454 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 1534AS431 | 5/9 Secondary reference Goodrich Corporation Dba Goodrich Corp, a New York Corp |
| D014189-501 | 5/9 Secondary reference U.S. Government activity |
NSN 3040-01-188-6521 is a Shaft,shouldered, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-188-6521 has 6 manufacturer part numbers on file: 1534AS431 (Solo Enterprise Corp. Dba Solo Enterprise Corp), 1534AS431 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 1534AS431 (Bendon Gear and Machine, Inc), 1534AS431 (Klune Industries, Inc. Div Pcc Aerostructures, Spanish Fork Dba Klune Industries), 1534AS431 (Vertex Modernization and Sustainment Llc) and 1 more.
Key specifications for 1534AS431: FSC Application Data: RACK,BOMB EJECTOR AIRCRAFT BRU-32A A; Second End External Thread Length: 0.283 INCHES NOMINAL IN; Step Quantity: 8; First End Diameter: 0.1900 INCHES NOMINAL IN. 13 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.
NSN 3040-01-188-6521 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.