The Shaft,shouldered, cataloged under National Stock Number 3040-00-383-6743, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Krobach Mfg. Corp. Dba Krobach Manufacturing 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through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-383-6743 |
| Primary Part Number | KMC-NB3094 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Krobach Mfg. Corp. Dba Krobach Manufacturing Corp |
| Status | ACTIVE |
| Step Quantity | 2 |
| First End Diameter | 0.5630 INCHES NOMINAL IN |
| Second End Diameter | 0.6255 INCHES NOMINAL IN |
| Second End Step Length | 0.438 INCHES NOMINAL IN |
| Largest Step Diameter | 0.563 INCHES NOMINAL IN |
| First End Style | WOODRUFF KEYWAY |
| Criticality Code Justification | FEAT |
| Second End Tongue Width | 0.217 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Tongue Thickness | 0.217 INCHES NOMINAL IN |
| Second End Style | TONGUE ROUNDED ENDS |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| KMC-NB3094 PRIMARY | Krobach Mfg. Corp. Dba Krobach Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| 737126 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| NH7407PC157 | 5/9 Secondary reference U.S. Government activity |
| NC6107PC157 | 5/9 Secondary reference U.S. Government activity |
| 737127 | 5/9 Secondary reference U.S. Government activity |
| 737127 | 5/9 Secondary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| 157NC6107 | 5/9 Secondary reference U.S. Government activity |
| NB-3094REVC2 | 5/9 Secondary reference U.S. Government activity |
| NH6714PC157 | 5/9 Secondary reference U.S. Government activity |
| 737127 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 737127 | 5/9 Secondary reference Calabrese & Sons, Inc. |
NSN 3040-00-383-6743 is a Shaft,shouldered, manufactured by Krobach Mfg. Corp. Dba Krobach Manufacturing Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-383-6743 has 1 manufacturer part number on file: KMC-NB3094 (Krobach Mfg. Corp. Dba Krobach Manufacturing Corp).
Key specifications for KMC-NB3094: Step Quantity: 2; First End Diameter: 0.5630 INCHES NOMINAL IN; Second End Diameter: 0.6255 INCHES NOMINAL IN; Second End Step Length: 0.438 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.