The Shaft,shouldered, cataloged under National Stock Number 3040-01-371-2653, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Concentric Rockford Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-371-2653 |
| Primary Part Number | 2350717 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Concentric Rockford Inc |
| Status | ACTIVE |
| Surface Finish | 15.0 MICROINCHES |
| Step Quantity | 5 |
| First End Diameter | 0.4997 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Second End Diameter | 0.6580 INCHES MINIMUM AND 0.6630 INCHES MAXIMUM IN |
| Second End Step Length | 0.300 INCHES NOMINAL IN |
| Largest Step Diameter | 0.667 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Second End Angle Between Flats | 180.0 DEGREES NOMINAL |
| End Similarity | NOT IDENTICAL |
| Second End Style | TWO FLATS |
| Material | STEEL COMP 8620 |
| 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 |
|---|---|
| 2350717 PRIMARY | Concentric Rockford Inc (USA) |
| 1309877 | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA) |
| Reference | Meaning |
|---|---|
| 1309877 | 5/9 Secondary reference Hyster-Yale Group, Inc. |
| 2350716 | D/9 Drawing number reference only Concentric Rockford Inc |
NSN 3040-01-371-2653 is a Shaft,shouldered, manufactured by Concentric Rockford Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-371-2653 has 2 manufacturer part numbers on file: 2350717 (Concentric Rockford Inc), 1309877 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling).
Key specifications for 2350717: Surface Finish: 15.0 MICROINCHES; Step Quantity: 5; First End Diameter: 0.4997 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN; Second End Diameter: 0.6580 INCHES MINIMUM AND 0.6630 INCHES MAXIMUM IN. 11 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.