The Gearshaft,spur, cataloged under National Stock Number 3040-01-370-5757, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-370-5757 |
| Primary Part Number | 2188041 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL |
| Shaft Largest Diameter | 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN |
| Shaft End Size | 1.790 INCHES AND 1.810 INCHES IN |
| Teeth Quantity | 47 |
| Module Number | 0.142 INCHES IN |
| Gear Outside Diameter | 4.858 INCHES MINIMUM AND 4.862 INCHES MAXIMUM IN |
| Longer Shaft Segment Length | 1.710 INCHES MINIMUM AND 1.730 INCHES MAXIMUM IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM TEETH |
| Gear Material | STEEL |
| Shaft End Type | CIRCULAR GROOVED |
| Gear Location on Shaft | OFF CENTER BETWEEN ENDS OF SHAFT |
| Pressure Angle | 22.5000 DEGREES |
| Face Width | 0.942 INCHES MINIMUM AND 0.958 INCHES MAXIMUM 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 |
|---|---|
| 2188041 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 3040-01-370-5757 is a Gearshaft,spur, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-370-5757 has 1 manufacturer part number on file: 2188041 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 2188041: Shaft Type: SHOULDERED; Shaft Material: STEEL; Shaft Largest Diameter: 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN; Shaft End Size: 1.790 INCHES AND 1.810 INCHES 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.