The Shaft,shouldered, cataloged under National Stock Number 3040-01-498-2256, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Crane Carrier Company, Llc. 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 | 3040-01-498-2256 |
| Primary Part Number | 6-40-521 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Crane Carrier Company, 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 |
|---|---|
| 6-40-521 PRIMARY | Crane Carrier Company, Llc (USA) |
NSN 3040-01-498-2256 is a Shaft,shouldered, manufactured by Crane Carrier Company, Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-498-2256 has 1 manufacturer part number on file: 6-40-521 (Crane Carrier Company, Llc).
Key specifications for 6-40-521: Special Features: NEXT HIGHER ASSEMBLY: PROPSHAFT ASSEMBLY P/N 260C; THIS IS ONLY A SUB-PART OF THE ASSEMBLY; SPLINED ON ONE END; Part Name Assigned by Controlling Agency: SLIP STUB SHAFT; End Item Identification: TRUCK, TRACTOR MODEL: M878A2; NSN 2320-01-452-5579. 0 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.