The Shaft,shouldered, cataloged under National Stock Number 3040-01-391-0781, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems. Government technical data includes 13 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 | 3040-01-391-0781 |
| Primary Part Number | DAA7229D182-001 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| Status | ACTIVE |
| Step Quantity | 3 |
| First End Diameter | 2.5000 INCHES NOMINAL IN |
| Second End Diameter | 0.7300 INCHES NOMINAL IN |
| Largest Step Diameter | 2.500 INCHES NOMINAL IN |
| First End Style | INTERNAL THREADED |
| First End Internal Thread Length | 0.7200 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-225/9,T7351 FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Slot Depth | 0.1250 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Slot Width | 0.3600 INCHES NOMINAL IN |
| Second End Style | SLOTTED AND INTERNALLY THREADED |
| Material | ALUMINUM ALLOY 7075 |
| Second End Internal Thread Length | 0.4400 INCHES NOMINAL IN |
| 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 |
|---|---|
| DAA7229D182-001 PRIMARY | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
NSN 3040-01-391-0781 is a Shaft,shouldered, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-391-0781 has 1 manufacturer part number on file: DAA7229D182-001 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems).
Key specifications for DAA7229D182-001: Step Quantity: 3; First End Diameter: 2.5000 INCHES NOMINAL IN; Second End Diameter: 0.7300 INCHES NOMINAL IN; Largest Step Diameter: 2.500 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.
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.