The Shaft,shouldered, cataloged under National Stock Number 3040-01-313-8754, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-313-8754 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Second End External Thread Length | 0.600 INCHES NOMINAL IN |
| Step Quantity | 6 |
| First End Diameter | 0.6230 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN |
| Second End Diameter | 0.7500 INCHES MINIMUM AND 0.7510 INCHES MAXIMUM IN |
| Largest Step Diameter | 1.000 INCHES NOMINAL IN |
| Second End Distance From Keyway Center to End | 1.365 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Second End Keyway Width | 0.1880 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN |
| Second End Groove Diameter | 0.6000 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.1880 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.600 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED WOODRUFF KEYWAY AND EXTERNALLY THREADED |
| Material | COPPER ALLOY |
| External Keyway Length | 1.031 INCHES NOMINAL SECOND END 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 |
|---|---|
| 26M68-310-10 | 3/2 Design control — primary reference U.S. Government activity |
| 26M68-310 | D/9 Drawing number reference only U.S. Government activity |
| 26M68-310-10 | 5/9 Secondary reference At and T Document Development Organization |
NSN 3040-01-313-8754 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-314-4182, 3020-01-316-7397. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-313-8754: Second End External Thread Length: 0.600 INCHES NOMINAL IN; Step Quantity: 6; First End Diameter: 0.6230 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN; Second End Diameter: 0.7500 INCHES MINIMUM AND 0.7510 INCHES MAXIMUM IN. 15 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.