The Shaft,shouldered, cataloged under National Stock Number 3040-00-382-1728, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 13 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 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 | 3040-00-382-1728 |
| Primary Part Number | 990230 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Second End Hole Diameter | 0.0932 INCHES NOMINAL IN |
| Step Quantity | 2 |
| First End Diameter | 0.3745 INCHES NOMINAL IN |
| Second End Diameter | 0.4995 INCHES NOMINAL IN |
| Largest Step Diameter | 0.499 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Material Document and Classification | MIL-B-892 MIL SPEC SINGLE MATERIAL RESPONSE |
| Second End Distance From Hole Center to End | 0.187 INCHES NOMINAL IN |
| Second End Hole Depth | 0.124 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | UNTHREADED CROSS DRILLED |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3040-00-382-1728 is a Shaft,shouldered, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-382-1728 has 2 manufacturer part numbers on file: 990230 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), TA3861 (L3 Technologies, Inc. Div L3 Keo).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-521-8632. Verify interchangeability with system specifications before substitution.
Key specifications for 990230: Surface Finish: 32.0 MICROINCHES; Second End Hole Diameter: 0.0932 INCHES NOMINAL IN; Step Quantity: 2; First End Diameter: 0.3745 INCHES NOMINAL IN. 13 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.