The Shaft,straight, cataloged under National Stock Number 3040-00-299-0057, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Trw Inc Trw Intl Trade Government Sales Dept. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-299-0057 |
| Primary Part Number | 42023 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Trw Inc Trw Intl Trade Government Sales Dept |
| Status | ACTIVE |
| First End Diameter | 0.8438 INCHES NOMINAL IN |
| First End Hole Depth | 0.844 INCHES NOMINAL IN |
| First End Style | UNTHREADED CROSS DRILLED |
| End Similarity | IDENTICAL |
| First End Hole Diameter | 0.4062 INCHES NOMINAL IN |
| Material | STEEL |
| First End Distance From Hole Center to End | 1.875 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 |
|---|---|
| 42023 | Trw Inc Trw Intl Trade Government Sales Dept (USA) |
| Reference | Meaning |
|---|---|
| B8AZ-6563-D | 3/9 Design control — primary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| B8AZ6563D | 5/9 Secondary reference U.S. Government activity |
| B8AZ-6563-D | 5/9 Secondary reference Ford Motor Company |
NSN 3040-00-299-0057 is a Shaft,straight, manufactured by Trw Inc Trw Intl Trade Government Sales Dept, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-299-0057 has 1 manufacturer part number on file: 42023 (Trw Inc Trw Intl Trade Government Sales Dept).
4 possible matches (shared part number, not a government interchangeability claim): 5307-00-726-2149, 5355-01-128-4149, 5360-01-313-5637. Verify interchangeability with system specifications before substitution.
Key specifications for 42023: First End Diameter: 0.8438 INCHES NOMINAL IN; First End Hole Depth: 0.844 INCHES NOMINAL IN; First End Style: UNTHREADED CROSS DRILLED; Overall Length: 18.000 INCHES NOMINAL IN. 7 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.