The Shaft,shouldered, cataloged under National Stock Number 3040-01-502-1973, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Reliance Electric Company Dba Reliance & Dodge Brands. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-502-1973 |
| Primary Part Number | 609034-41-B |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Reliance Electric Company Dba Reliance & Dodge Brands |
| Status | ACTIVE |
| Step Quantity | 11 |
| First End Diameter | 0.8743 INCHES NOMINAL IN |
| Second End Diameter | 0.9370 INCHES NOMINAL IN |
| Largest Step Diameter | 1.815 INCHES NOMINAL IN |
| Second End Distance From Keyway Center to End | 0.500 INCHES NOMINAL IN |
| First End Style | FLAT KEYWAY |
| Second End Keyway Width | 0.2510 INCHES NOMINAL IN |
| First End Keyway Depth | 0.103 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.142 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | INDENTED FLAT KEYWAY |
| Material | STEEL CORROSION RESISTING |
| External Keyway Length | 0.880 INCHES NOMINAL SECOND END IN |
| External Keyway Length | 1.750 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.1890 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 |
|---|---|
| 609034-41-B PRIMARY | Reliance Electric Company Dba Reliance & Dodge Brands (USA) |
| 801626-536 REV A PC. NO. 40 | Reliance Electric Company Dba Reliance & Dodge Brands (USA) |
| Reference | Meaning |
|---|---|
| 801626-536 | D/9 Drawing number reference only Reliance Electric Company Dba Reliance & Dodge Brands |
NSN 3040-01-502-1973 is a Shaft,shouldered, manufactured by Reliance Electric Company Dba Reliance & Dodge Brands, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-502-1973 has 2 manufacturer part numbers on file: 609034-41-B (Reliance Electric Company Dba Reliance & Dodge Brands), 801626-536 REV A PC. NO. 40 (Reliance Electric Company Dba Reliance & Dodge Brands).
Key specifications for 609034-41-B: Step Quantity: 11; First End Diameter: 0.8743 INCHES NOMINAL IN; Second End Diameter: 0.9370 INCHES NOMINAL IN; Largest Step Diameter: 1.815 INCHES NOMINAL IN. 15 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.