The Shaft,shouldered, cataloged under National Stock Number 3040-01-032-9712, 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 Corporation. Government technical data includes 9 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 | 3040-01-032-9712 |
| Primary Part Number | 1817990 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| Step Quantity | 3 |
| First End Diameter | 0.1874 INCHES MINIMUM AND 0.1879 INCHES MAXIMUM IN |
| Second End Diameter | 0.2504 INCHES MINIMUM AND 0.2509 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.2504 INCHES MINIMUM AND 0.2509 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| End Similarity | NOT IDENTICAL |
| Second End Style | PLAIN |
| Material | STEEL COMP 303 |
| 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 |
|---|---|
| 1817990 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 3040-01-032-9712 is a Shaft,shouldered, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-032-9712 has 1 manufacturer part number on file: 1817990 (Northrop Grumman Systems Corporation).
Key specifications for 1817990: Surface Finish: 63.0 MICROINCHES; Step Quantity: 3; First End Diameter: 0.1874 INCHES MINIMUM AND 0.1879 INCHES MAXIMUM IN; Second End Diameter: 0.2504 INCHES MINIMUM AND 0.2509 INCHES MAXIMUM IN. 9 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.