The Shaft,straight, cataloged under National Stock Number 3040-01-192-9678, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-192-9678 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| First End Diameter | 1.2460 INCHES MINIMUM AND 1.2480 INCHES MAXIMUM IN |
| First End Distance From Keyway Center to End | 1.061 INCHES MINIMUM AND 1.068 INCHES MAXIMUM IN |
| First End Style | INDENTED FLAT KEYWAY |
| Material Document and Classification | QQ-N-281 CL A FORM 1 FED SPEC SINGLE MATERIAL RESPONSE |
| First End Keyway Depth | 0.215 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN |
| End Similarity | IDENTICAL |
| Material | NICKEL ALLOY |
| External Keyway Length | 1.625 INCHES MINIMUM AND 1.635 INCHES MAXIMUM FIRST END IN |
| First End Keyway Width | 0.3750 INCHES MINIMUM AND 0.3770 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 |
|---|---|
| 87611-1419 | D/9 Drawing number reference only U.S. Government activity |
| 520-4674705 | D/9 Drawing number reference only U.S. Government activity |
| 520-4674705 ITEM 20 | 3/2 Design control — primary reference U.S. Government activity |
| 87611-1419 ITEM 20 | 5/2 Secondary reference U.S. Government activity |
NSN 3040-01-192-9678 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): 3040-01-192-9683, 3040-01-243-3549. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-192-9678: Surface Finish: 125.0 MICROINCHES; First End Diameter: 1.2460 INCHES MINIMUM AND 1.2480 INCHES MAXIMUM IN; First End Distance From Keyway Center to End: 1.061 INCHES MINIMUM AND 1.068 INCHES MAXIMUM IN; First End Style: INDENTED FLAT KEYWAY. 10 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.