The Shaft,shouldered, cataloged under National Stock Number 3040-01-498-1838, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-498-1838 |
| Primary Part Number | 752-7068502-1 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| End Similarity | IDENTICAL |
| Material | STEEL CORROSION RESISTING |
| First End Step Length | 0.3100 INCHES NOMINAL IN |
| First End Diameter | 0.6865 INCHES MINIMUM AND 0.6879 INCHES MAXIMUM IN |
| First End Style | SQUARE (ROUND CORNERS) |
| Material Document and Classification | ASTM-A564,TY-630 NATIONAL SPEC ALL MATERIAL RESPONSES |
| Largest Step Diameter | 0.7484 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM IN |
| Step Quantity | 6 |
| First End Width Across Flats | 0.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| H832-1684-1 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 752-7068502-1 PRIMARY | Naval Sea Systems Command (USA) |
| 752-7068502 | Naval Sea Systems Command (USA) |
NSN 3040-01-498-1838 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040 (No Item Name Available). Status: active.
NSN 3040-01-498-1838 has 3 cross-referenced part numbers: H832-1684-1 (Electric Boat Corporation Div General Dynamics Electric Boat), 752-7068502-1 (Naval Sea Systems Command), 752-7068502 (Naval Sea Systems Command).
There are 5 known substitutes for 3040-01-498-1838: 3040-01-498-1260, 3040-01-498-1436, 3040-01-498-1457 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 752-7068502-1: End Similarity: IDENTICAL; Material: STEEL CORROSION RESISTING; First End Step Length: 0.3100 INCHES NOMINAL IN; First End Diameter: 0.6865 INCHES MINIMUM AND 0.6879 INCHES MAXIMUM IN. 11 total characteristics are documented in the Federal Logistics Information System.