The Shaft,shouldered, cataloged under National Stock Number 3040-00-758-9245, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Fairbanks Morse, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-758-9245 |
| Primary Part Number | TD3251A |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Step Quantity | 3 |
| First End Diameter | 2.8750 INCHES NOMINAL IN |
| Second End Diameter | 1.2500 INCHES NOMINAL IN |
| Largest Step Diameter | 2.875 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Second End Slot Depth | 0.250 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Slot Width | 0.334 INCHES NOMINAL IN |
| Second End Style | SLOTTED |
| Material | STEEL |
| 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 |
|---|---|
| TD3251A PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| TD3251A | 3/9 Design control — primary reference U.S. Government activity |
NSN 3040-00-758-9245 is a Shaft,shouldered, manufactured by Fairbanks Morse, Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-758-9245 has 1 manufacturer part number on file: TD3251A (Fairbanks Morse, Llc).
Key specifications for TD3251A: Step Quantity: 3; First End Diameter: 2.8750 INCHES NOMINAL IN; Second End Diameter: 1.2500 INCHES NOMINAL IN; Largest Step Diameter: 2.875 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.