The Shaft,straight, cataloged under National Stock Number 3040-01-074-3675, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-074-3675 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Second End Hole Diameter | 0.1870 INCHES MINIMUM AND 0.1930 INCHES MAXIMUM IN |
| First End Diameter | 0.9825 INCHES MINIMUM AND 0.9835 INCHES MAXIMUM IN |
| Second End Diameter | 0.9825 INCHES MINIMUM AND 0.9835 INCHES MAXIMUM IN |
| First End Style | CIRCULAR GROOVED |
| Second End Distance From Hole Center to End | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| First End Groove Diameter | 0.9370 INCHES MINIMUM AND 0.9430 INCHES MAXIMUM IN |
| Second End Style | UNTHREADED CROSS DRILLED |
| Material | STEEL |
| First End Groove Width | 0.0460 INCHES MINIMUM AND 0.0490 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 050709 | 3/9 Design control — primary reference Big Joe Mfg Co |
NSN 3040-01-074-3675 is a Shaft,straight, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6520-01-529-7419. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-074-3675: Second End Hole Diameter: 0.1870 INCHES MINIMUM AND 0.1930 INCHES MAXIMUM IN; First End Diameter: 0.9825 INCHES MINIMUM AND 0.9835 INCHES MAXIMUM IN; Second End Diameter: 0.9825 INCHES MINIMUM AND 0.9835 INCHES MAXIMUM IN; First End Style: CIRCULAR GROOVED. 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.