The Shaft,straight, cataloged under National Stock Number 3040-00-993-5955, 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 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-993-5955 |
| Primary Part Number | 2042143-4 |
| 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 | 0.1873 INCHES NOMINAL IN |
| Second End Diameter | 0.1873 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 0.1625 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Second End Spline Major Diameter | 0.1873 INCHES NOMINAL IN |
| Material Document and Classification | AISI 416 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 14 |
| Second End Style | SPLINED (STRAIGHT) |
| Material | STEEL COMP 416 |
| Second End Spline Length | 0.313 INCHES NOMINAL IN |
| 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 |
|---|---|
| 2042143-4 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| L340005064 | Lockheed Martin Librascope Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2042143 | D/9 Drawing number reference only Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 3040-00-993-5955 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 3040-00-993-5955 has 2 manufacturer part numbers on file: 2042143-4 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), L340005064 (Lockheed Martin Librascope Corporation).
Key specifications for 2042143-4: Surface Finish: 32.0 MICROINCHES; First End Diameter: 0.1873 INCHES NOMINAL IN; Second End Diameter: 0.1873 INCHES NOMINAL IN; Second End Spline Minor Diameter: 0.1625 INCHES NOMINAL IN. 12 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.