The Shaft,shouldered, cataloged under National Stock Number 3040-01-288-9689, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-288-9689 |
| Primary Part Number | 904J298 PIECE 16 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Second End External Thread Length | 0.750 INCHES NOMINAL IN |
| Step Quantity | 9 |
| First End Diameter | 1.1730 INCHES NOMINAL IN |
| Second End Diameter | 1.5625 INCHES NOMINAL IN |
| Largest Step Diameter | 2.250 INCHES NOMINAL IN |
| First End External Thread Length | 0.375 INCHES NOMINAL IN |
| First End Style | EXTERNALLY THREADED AND FLAT KEYWAY |
| Second End Keyway Width | 0.3125 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE |
| First End Keyway Depth | 0.0937 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.0937 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNALLY THREADED AND FLAT KEYWAY |
| Material | STEEL |
| External Keyway Length | 0.875 INCHES NOMINAL SECOND END IN |
| External Keyway Length | 0.750 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.1875 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 |
|---|---|
| 904J298 PIECE 16 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 310B643H01 | 3/9 Design control — primary reference Westinghouse Electric Corp Control Business Unit |
| 904J298 PIECE 16 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
| 904J298 | D/9 Drawing number reference only Westinghouse Electric Corp |
NSN 3040-01-288-9689 is a Shaft,shouldered, manufactured by Westinghouse Electric Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-288-9689 has 1 manufacturer part number on file: 904J298 PIECE 16 (Westinghouse Electric Corp).
Key specifications for 904J298 PIECE 16: Second End External Thread Length: 0.750 INCHES NOMINAL IN; Step Quantity: 9; First End Diameter: 1.1730 INCHES NOMINAL IN; Second End Diameter: 1.5625 INCHES NOMINAL IN. 17 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.