The Shaft,shouldered, cataloged under National Stock Number 3040-01-346-9833, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Essex Industries, Inc. Dba Essex Industries. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-346-9833 |
| Primary Part Number | 50C-0033-0144-2 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Essex Industries, Inc. Dba Essex Industries |
| Status | ACTIVE |
| Step Quantity | 5 |
| Second End Diameter | 0.3720 INCHES NOMINAL IN |
| Largest Step Diameter | 0.500 INCHES NOMINAL IN |
| First End Style | PLAIN |
| End Similarity | NOT IDENTICAL |
| Second End Style | INTERNAL THREADED |
| Material | STEEL CORROSION RESISTING |
| Second End Internal Thread Length | 0.650 INCHES NOMINAL IN |
| 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 |
|---|---|
| 50C-0033-0144-2 | Essex Industries Inc (USA) |
| 50C-0033-0144-2 PRIMARY | Essex Industries, Inc. Dba Essex Industries (USA) |
| Reference | Meaning |
|---|---|
| 50C-0033-0144 | D/9 Drawing number reference only Essex Industries, Inc. Dba Essex Industries |
NSN 3040-01-346-9833 is a Shaft,shouldered, manufactured by Essex Industries, Inc. Dba Essex Industries, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-346-9833 has 2 manufacturer part numbers on file: 50C-0033-0144-2 (Essex Industries Inc), 50C-0033-0144-2 (Essex Industries, Inc. Dba Essex Industries).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-346-9834. Verify interchangeability with system specifications before substitution.
Key specifications for 50C-0033-0144-2: Step Quantity: 5; Second End Diameter: 0.3720 INCHES NOMINAL IN; Largest Step Diameter: 0.500 INCHES NOMINAL IN; First End Style: PLAIN. 8 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.