The Shaft,shouldered, cataloged under National Stock Number 3040-01-509-1434, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-509-1434 |
| Primary Part Number | 167-7409321-7 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| End Similarity | NOT IDENTICAL |
| First End Spline Quantity | 10 |
| First End Spline Minor Diameter | 1.7130 INCHES NOMINAL IN |
| Step Quantity | 4 |
| Second End Diameter | 1.5000 INCHES NOMINAL IN |
| Largest Step Diameter | 2.750 INCHES NOMINAL IN |
| Second End Style | EXTERNAL THREADED |
| First End Spline Length | 6.540 INCHES NOMINAL IN |
| First End Spline Major Diameter | 1.9970 INCHES NOMINAL IN |
| First End Style | SPLINED (STRAIGHT) |
| Second End External Thread Length | 2.660 INCHES NOMINAL IN |
| Surface Finish | 32.0 MICROINCHES |
| Material | NICKEL ALLOY |
| First End Diameter | 1.9970 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 167-7409321-7 PRIMARY | Naval Sea Systems Command (USA) |
| 167-7409321-7L1 | Naval Sea Systems Command (USA) |
| 167-7409320-A6L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| B541-1110-7L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| B541-1100-16L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| B541-1110-7 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 167-7409320-16 | Naval Sea Systems Command (USA) |
| 7409321 | Naval Sea Systems Command (USA) |
| B541-1100-16 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 7409320 | Naval Sea Systems Command (USA) |
NSN 3040-01-509-1434 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040 (No Item Name Available). Status: active.
NSN 3040-01-509-1434 has 10 cross-referenced part numbers: 167-7409321-7 (Naval Sea Systems Command), 167-7409321-7L1 (Naval Sea Systems Command), 167-7409320-A6L1 (Naval Inventory Control Point Mechanicsburg), B541-1110-7L1 (Naval Inventory Control Point Mechanicsburg), B541-1100-16L1 (Naval Inventory Control Point Mechanicsburg) and 5 more.
There are 12 known substitutes for 3040-01-509-1434: 5310-00-404-8189, 5360-00-447-9003, 3020-01-508-6138 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 167-7409321-7: End Similarity: NOT IDENTICAL; First End Spline Quantity: 10; Overall Length: 26.000 INCHES NOMINAL IN; First End Spline Minor Diameter: 1.7130 INCHES NOMINAL IN. 18 total characteristics are documented in the Federal Logistics Information System.