The Shaft,shouldered, cataloged under National Stock Number 3040-01-421-4691, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Antenna Products Corporation Dba Antenna Products Corp. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-421-4691 |
| Primary Part Number | 0003-4575-301 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Antenna Products Corporation Dba Antenna Products Corp |
| Status | ACTIVE |
| Surface Finish | 125.0 MICRONS |
| Second End External Thread Length | 1.1300 INCHES NOMINAL IN |
| Step Quantity | 3 |
| First End Diameter | 0.8750 INCHES NOMINAL IN |
| Second End Diameter | 0.3120 INCHES NOMINAL IN |
| Largest Step Diameter | 0.8765 INCHES NOMINAL IN |
| First End Slot Width | 0.0900 INCHES NOMINAL IN |
| First End Style | SLOTTED |
| End Similarity | NOT IDENTICAL |
| First End Slot Depth | 1.2950 INCHES NOMINAL IN |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL COMP 302 OR STEEL COMP 316 |
| 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 |
|---|---|
| 0003-4575-301 PRIMARY | Antenna Products Corporation Dba Antenna Products Corp (USA) |
| Reference | Meaning |
|---|---|
| 003-4575-301 | 3/9 Design control — primary reference Antenna Products Corporation Dba Antenna Products Corp |
| 0003-4575 | D/9 Drawing number reference only Antenna Products Corporation Dba Antenna Products Corp |
NSN 3040-01-421-4691 is a Shaft,shouldered, manufactured by Antenna Products Corporation Dba Antenna Products Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-421-4691 has 1 manufacturer part number on file: 0003-4575-301 (Antenna Products Corporation Dba Antenna Products Corp).
Key specifications for 0003-4575-301: Surface Finish: 125.0 MICRONS; Second End External Thread Length: 1.1300 INCHES NOMINAL IN; Step Quantity: 3; First End Diameter: 0.8750 INCHES NOMINAL IN. 12 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.