The Shaft,straight, cataloged under National Stock Number 3040-01-178-2999, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Marine & Industrial Transmissions Ltd. Government technical data includes 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-178-2999 |
| Primary Part Number | M2051CS |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Marine & Industrial Transmissions Ltd |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| First End Diameter | 0.1840 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Material Document and Classification | QQ-S-763,CL 416,COND H FED SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | IDENTICAL |
| Material | STEEL COMP 416 |
| 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 |
|---|---|
| M2051CS | Marine & Industrial Transmissions Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 101A743AA6 | 3/9 Design control — primary reference General Electric Co Naval and Drive Turbine Systems Dept |
| M2051CS | 5/9 Secondary reference Twin Disc International S a |
| F-3131526 PIECE 29 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
NSN 3040-01-178-2999 is a Shaft,straight, manufactured by Marine & Industrial Transmissions Ltd, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-178-2999 has 1 manufacturer part number on file: M2051CS (Marine & Industrial Transmissions Ltd).
Key specifications for M2051CS: Surface Finish: 125.0 MICROINCHES; First End Diameter: 0.1840 INCHES NOMINAL IN; First End Style: PLAIN; Material Document and Classification: QQ-S-763,CL 416,COND H FED SPEC SINGLE MATERIAL RESPONSE. 6 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.