The Shaft,shouldered, cataloged under National Stock Number 3040-01-305-2152, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Derbyshire Machine & Tool Co. Government technical data includes 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-01-305-2152 |
| Primary Part Number | 704-4685209 ITEM 9 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| Step Quantity | 4 |
| First End Diameter | 1.4980 INCHES NOMINAL IN |
| Second End Diameter | 2.1245 INCHES NOMINAL IN |
| Largest Step Diameter | 2.125 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Material Document and Classification | QQ-S-763,CLASS 304,COND A FED SPEC ALL MATERIAL RESPONSES |
| End Similarity | NOT IDENTICAL |
| Second End Style | PLAIN |
| Material | STEEL COMP 304 |
| 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 |
|---|---|
| 704-4685209 ITEM 9 | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 704-4685209 ITEM 9 | 3/2 Design control — primary reference U.S. Government activity |
| 704-4685209 ITEM 9 | 5/9 Secondary reference Calabrese & Sons, Inc. |
| 704-4685209 ITEM 9 | 5/9 Secondary reference Tec Design & Manufacturing, Inc. |
NSN 3040-01-305-2152 is a Shaft,shouldered, manufactured by Derbyshire Machine & Tool Co, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-305-2152 has 1 manufacturer part number on file: 704-4685209 ITEM 9 (Derbyshire Machine & Tool Co).
Key specifications for 704-4685209 ITEM 9: Surface Finish: 125.0 MICROINCHES; Step Quantity: 4; First End Diameter: 1.4980 INCHES NOMINAL IN; Second End Diameter: 2.1245 INCHES NOMINAL IN. 10 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.