The Shaft,shouldered, cataloged under National Stock Number 3040-00-149-8111, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 13 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 | 3040-00-149-8111 |
| Primary Part Number | 2B8925 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Second End External Thread Length | 0.687 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 1.7000 INCHES NOMINAL IN |
| First End Spline Major Diameter | 1.7000 INCHES NOMINAL IN |
| Second End Diameter | 1.5750 INCHES NOMINAL IN |
| Largest Step Diameter | 2.220 INCHES NOMINAL IN |
| First End Style | SPLINED (STRAIGHT) |
| First End Spline Length | 2.250 INCHES NOMINAL IN |
| First End Spline Quantity | 10 |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| First End Spline Minor Diameter | 1.2500 INCHES NOMINAL IN |
| 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 |
|---|---|
| 2B8925 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 3040-00-149-8111 is a Shaft,shouldered, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-149-8111 has 1 manufacturer part number on file: 2B8925 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 2B8925: Second End External Thread Length: 0.687 INCHES NOMINAL IN; Step Quantity: 4; First End Diameter: 1.7000 INCHES NOMINAL IN; First End Spline Major Diameter: 1.7000 INCHES NOMINAL IN. 13 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.