The Shaft,shouldered, cataloged under National Stock Number 3040-00-554-8035, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 19 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. 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 | 3040-00-554-8035 |
| Primary Part Number | 5548035 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| Second End Angle Between Holes | 90.0 DEGREES NOMINAL |
| Second End Hole Diameter | 0.1880 INCHES NOMINAL IN |
| Second End External Thread Length | 3.057 INCHES NOMINAL IN |
| Step Quantity | 9 |
| First End Diameter | 1.6250 INCHES NOMINAL IN |
| Second End Diameter | 1.2800 INCHES NOMINAL IN |
| Largest Step Diameter | 1.625 INCHES NOMINAL IN |
| First End External Thread Length | 1.000 INCHES NOMINAL IN |
| First End Style | EXTERNALLY AND INTERNALLY THREADED |
| First End Internal Thread Length | 0.625 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 1.0200 INCHES NOMINAL IN |
| Second End Distance From Hole Center to End | 0.188 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.1250 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 3.063 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVE, TWO CROSS DRILLED HOLES AND EXTERNALLY THREADED |
| Material | STEEL COMP 4140 |
| 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 |
|---|---|
| 5548035 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 3040-00-554-8035 is a Shaft,shouldered, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-554-8035 has 1 manufacturer part number on file: 5548035 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-226-0382. Verify interchangeability with system specifications before substitution.
Key specifications for 5548035: Surface Finish: 125.0 MICROINCHES; Second End Angle Between Holes: 90.0 DEGREES NOMINAL; Second End Hole Diameter: 0.1880 INCHES NOMINAL IN; Second End External Thread Length: 3.057 INCHES NOMINAL IN. 19 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.