The Shaft,shouldered, cataloged under National Stock Number 3040-00-042-8422, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Astronautics Corporation of America. Government technical data includes 13 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-042-8422 |
| Primary Part Number | 103477 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Astronautics Corporation of America |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| FSC Application Data | INDICATOR,ATTUDE |
| Second End External Thread Length | 0.215 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 0.1870 INCHES NOMINAL IN |
| Second End Diameter | 0.1380 INCHES NOMINAL IN |
| Largest Step Diameter | 0.250 INCHES NOMINAL IN |
| First End Style | INTERNAL THREADED |
| First End Internal Thread Length | 0.380 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-7720,COMP 303,COND A MIL SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 103477 PRIMARY | Astronautics Corporation of America (USA) |
NSN 3040-00-042-8422 is a Shaft,shouldered, manufactured by Astronautics Corporation of America, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-042-8422 has 1 manufacturer part number on file: 103477 (Astronautics Corporation of America).
2 possible matches (shared part number, not a government interchangeability claim): 5905-01-086-6534, 5998-01-416-9380. Verify interchangeability with system specifications before substitution.
Key specifications for 103477: Surface Finish: 125.0 MICROINCHES; FSC Application Data: INDICATOR,ATTUDE; Second End External Thread Length: 0.215 INCHES NOMINAL IN; Step Quantity: 4. 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.