The Shaft,shouldered, cataloged under National Stock Number 3040-00-550-9873, 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 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-550-9873 |
| Primary Part Number | 5509873 |
| 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 |
| Second End External Thread Length | 1.500 INCHES NOMINAL IN |
| Step Quantity | 3 |
| First End Diameter | 2.3730 INCHES NOMINAL IN |
| Second End Diameter | 1.5000 INCHES NOMINAL IN |
| Largest Step Diameter | 2.740 INCHES NOMINAL IN |
| First End Style | INTERNAL THREADED |
| First End Internal Thread Length | 2.250 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL 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 |
|---|---|
| 5509873 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 3040-00-550-9873 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 3040-00-550-9873 has 1 manufacturer part number on file: 5509873 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 5509873: Second End External Thread Length: 1.500 INCHES NOMINAL IN; Step Quantity: 3; First End Diameter: 2.3730 INCHES NOMINAL IN; Second End Diameter: 1.5000 INCHES NOMINAL IN. 10 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.