The Shaft,shouldered, cataloged under National Stock Number 3040-01-718-5426, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Mack Defense Llc Dba Mack Defense Llc. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 — Miscellaneous Power Transmission Equipment (FSG 30) |
| Manufacturers | Mack Defense Llc Dba Mack Defense Llc (CAGE 6B8L4); Mack Trucks, Inc Dba Mack Trucks Inc (CAGE 9N930); Volvo Group North America Llc Dba Volvo Group North America, Inc (CAGE 5NS11) |
| Parameter | Value |
|---|---|
| NSN | 3040-01-718-5426 |
| Primary Part Number | 23640751 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Mack Defense Llc Dba Mack Defense Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 23640751 PRIMARY | Mack Defense Llc Dba Mack Defense Llc (USA) |
| 23640751 | Mack Trucks, Inc Dba Mack Trucks Inc (USA) |
| 23640751 | Volvo Group North America Llc Dba Volvo Group North America, Inc (USA) |
| Reference | Meaning |
|---|---|
| 23640751 REV 2 | D/9 Drawing number reference only Mack Defense Llc Dba Mack Defense Llc |
| WP 1444 R00313-9-2320-459 | D/9 Drawing number reference only Volvo Group North America Llc Dba Volvo Group North America, Inc |
NSN 3040-01-718-5426 is a Shaft,shouldered, manufactured by Mack Defense Llc Dba Mack Defense Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-718-5426 has 3 manufacturer part numbers on file: 23640751 (Mack Defense Llc Dba Mack Defense Llc), 23640751 (Mack Trucks, Inc Dba Mack Trucks Inc), 23640751 (Volvo Group North America Llc Dba Volvo Group North America, Inc).
3 possible matches (shared part number, not a government interchangeability claim): 5365-01-718-7128, 6150-01-718-8639, 2540-01-718-8678. Verify interchangeability with system specifications before substitution.
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.