The Shaft,shouldered, cataloged under National Stock Number 3040-01-503-7465, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-503-7465 |
| Primary Part Number | 596-7410507-6 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| Second End External Thread Length | 1.350 INCHES NOMINAL IN |
| Step Quantity | 8 |
| First End Diameter | 1.5000 INCHES NOMINAL IN |
| Second End Diameter | 1.7500 INCHES NOMINAL IN |
| Largest Step Diameter | 3.500 INCHES NOMINAL IN |
| First End External Thread Length | 1.100 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED AND EXTERNALLY THREADED |
| Material Document and Classification | QQ-N-286, FORM-2, COND-ANL; AH FIN-A FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 1.6100 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 1.100 INCHES NOMINAL IN |
| Second End Groove Width | 0.1200 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 1.350 INCHES NOMINAL IN |
| First End Groove Diameter | 1.3600 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED AND EXTERNALLY THREADED |
| Material | NICKEL ALLOY K-500 |
| First End Groove Width | 0.1200 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 596-7410332-5 | Naval Sea Systems Command (USA) |
| 596-7410507-6 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7410507 | D/9 Drawing number reference only Naval Sea Systems Command |
| B434-5412-6 | 5/2 Secondary reference U.S. Government activity |
| B434-5410-5 | 5/2 Secondary reference U.S. Government activity |
| 7410332 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-503-7465 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-503-7465 has 2 manufacturer part numbers on file: 596-7410332-5 (Naval Sea Systems Command), 596-7410507-6 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-503-7500, 3040-01-504-0608. Verify interchangeability with system specifications before substitution.
Key specifications for 596-7410507-6: Surface Finish: 63.0 MICROINCHES; Second End External Thread Length: 1.350 INCHES NOMINAL IN; Step Quantity: 8; First End Diameter: 1.5000 INCHES NOMINAL IN. 18 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.
NSN 3040-01-503-7465 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.