The Shaft,shouldered, cataloged under National Stock Number 3040-00-536-8231, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Komatsu America Corp.. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-536-8231 |
| Primary Part Number | 42938D |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Komatsu America Corp. |
| Status | ACTIVE |
| Second End External Thread Length | 0.688 INCHES NOMINAL IN |
| Step Quantity | 8 |
| First End Diameter | 1.9690 INCHES NOMINAL IN |
| Second End Diameter | 0.6190 INCHES NOMINAL IN |
| Largest Step Diameter | 1.969 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL COMP 1040 |
| 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 |
|---|---|
| 42938D | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 42938D | 3/9 Design control — primary reference Komatsu American Intl Co |
| 42938D | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 42938D | 5/9 Secondary reference U.S. Government activity |
NSN 3040-00-536-8231 is a Shaft,shouldered, manufactured by Komatsu America Corp., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-536-8231 has 1 manufacturer part number on file: 42938D (Komatsu America Corp.).
Key specifications for 42938D: Second End External Thread Length: 0.688 INCHES NOMINAL IN; Step Quantity: 8; First End Diameter: 1.9690 INCHES NOMINAL IN; Second End Diameter: 0.6190 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.