The Shaft,straight, cataloged under National Stock Number 3040-00-050-6678, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-050-6678 |
| Primary Part Number | 1028681-3 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| First End Diameter | 0.1871 INCHES MINIMUM AND 0.1873 INCHES MAXIMUM IN |
| Second End Diameter | 0.1871 INCHES MINIMUM AND 0.1873 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| Material Document and Classification | QQ-S-763,CL 416,COND A FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 0.1735 INCHES MINIMUM AND 0.1765 INCHES MAXIMUM IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.0180 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 1.000 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED |
| 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 |
NSN 3040-00-050-6678 is a Shaft,straight, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-050-6678 has 2 manufacturer part numbers on file: 41-584-3 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1028681-3 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
2 possible matches (shared part number, not a government interchangeability claim): 1020-00-334-1209, 5930-01-646-8125. Verify interchangeability with system specifications before substitution.
Key specifications for 1028681-3: Surface Finish: 32.0 MICROINCHES; First End Diameter: 0.1871 INCHES MINIMUM AND 0.1873 INCHES MAXIMUM IN; Second End Diameter: 0.1871 INCHES MINIMUM AND 0.1873 INCHES MAXIMUM IN; First End Style: PLAIN. 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.