The Shaft,shouldered, cataloged under National Stock Number 3040-01-499-7142, 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 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-499-7142 |
| Primary Part Number | 123-7535145 ITEM NO 31 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Second End External Thread Length | 1.2500 INCHES NOMINAL IN |
| Step Quantity | 2 |
| First End Diameter | 1.3750 INCHES NOMINAL IN |
| Second End Diameter | 0.7490 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| Largest Step Diameter | 1.375 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Material Document and Classification | ASTM A276 CRES-316L NATIONAL SPEC ALL MATERIAL RESPONSES |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 123-7535145 ITEM NO 31 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 123-7535145 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-499-7142 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-499-7142 has 1 manufacturer part number on file: 123-7535145 ITEM NO 31 (Naval Sea Systems Command).
Key specifications for 123-7535145 ITEM NO 31: Second End External Thread Length: 1.2500 INCHES NOMINAL IN; Step Quantity: 2; First End Diameter: 1.3750 INCHES NOMINAL IN; Second End Diameter: 0.7490 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN. 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.