The Shaft,straight, cataloged under National Stock Number 3040-00-691-4036, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-691-4036 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| FSC Application Data | TRANSMITTER,ACFT |
| First End Style | UNTHREADED CROSS DRILLED |
| End Similarity | IDENTICAL |
| First End Hole Diameter | 0.0330 INCHES MINIMUM IN |
| Material | STEEL |
| First End Distance From Hole Center to End | 0.060 INCHES MINIMUM AND 0.080 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 |
|---|---|
| 30-2521 | 3/2 Design control — primary reference U.S. Government activity |
| 30-2521 | 5/9 Secondary reference U.S. Government activity |
NSN 3040-00-691-4036 is a Shaft,straight, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 6510-01-614-0050, 5310-01-701-5463. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-00-691-4036: Surface Finish: 125.0 MICROINCHES; FSC Application Data: TRANSMITTER,ACFT; First End Style: UNTHREADED CROSS DRILLED; Overall Length: 3.550 INCHES MINIMUM AND 3.590 INCHES MAXIMUM 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.