The Shaft,shouldered, cataloged under National Stock Number 3040-00-600-3299, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-600-3299 |
| Primary Part Number | T4B4AQ |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Pentair Pump Group, Inc. Dba Fairbanks Morse Pump |
| Status | ACTIVE |
| Step Quantity | 5 |
| First End Diameter | 1.4380 INCHES NOMINAL IN |
| Second End Diameter | 1.3120 INCHES NOMINAL IN |
| Largest Step Diameter | 1.875 INCHES NOMINAL IN |
| First End Style | FLAT KEYWAY |
| Second End Keyway Width | 0.5000 INCHES NOMINAL IN |
| First End Keyway Depth | 0.188 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.125 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | FLAT KEYWAY |
| Material | STEEL |
| External Keyway Length | 1.656 INCHES NOMINAL SECOND END IN |
| External Keyway Length | 3.250 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 |
|---|---|
| T4B4AQ PRIMARY | Pentair Pump Group, Inc. Dba Fairbanks Morse Pump (USA) |
| Reference | Meaning |
|---|---|
| T4B4AQ | 5/9 Secondary reference U.S. Government activity |
NSN 3040-00-600-3299 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 3040-00-600-3299 has 1 manufacturer part number on file: T4B4AQ (Pentair Pump Group, Inc. Dba Fairbanks Morse Pump).
Key specifications for T4B4AQ: Step Quantity: 5; First End Diameter: 1.4380 INCHES NOMINAL IN; Second End Diameter: 1.3120 INCHES NOMINAL IN; Largest Step Diameter: 1.875 INCHES NOMINAL IN. 14 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.