The Shaft,shouldered, cataloged under National Stock Number 3040-01-049-1528, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Pentair Pump Group, Inc. Dba Fairbanks Morse Pump. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-049-1528 |
| Primary Part Number | K3M4F |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Pentair Pump Group, Inc. Dba Fairbanks Morse Pump |
| Status | ACTIVE |
| Second End External Thread Length | 0.750 INCHES NOMINAL IN |
| Step Quantity | 8 |
| First End Diameter | 1.2500 INCHES NOMINAL IN |
| Second End Diameter | 1.3772 INCHES NOMINAL IN |
| Largest Step Diameter | 1.689 INCHES NOMINAL IN |
| First End Style | FLAT KEYWAY |
| First End Keyway Depth | 0.250 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | NICKEL OR COPPER ALLOY |
| External Keyway Length | 2.500 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.3750 INCHES NOMINAL IN |
| 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 |
|---|---|
| K3M4F PRIMARY | Pentair Pump Group, Inc. Dba Fairbanks Morse Pump (USA) |
NSN 3040-01-049-1528 is a Shaft,shouldered, manufactured by Pentair Pump Group, Inc. Dba Fairbanks Morse Pump, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-049-1528 has 1 manufacturer part number on file: K3M4F (Pentair Pump Group, Inc. Dba Fairbanks Morse Pump).
Key specifications for K3M4F: Second End External Thread Length: 0.750 INCHES NOMINAL IN; Step Quantity: 8; First End Diameter: 1.2500 INCHES NOMINAL IN; Second End Diameter: 1.3772 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.