The Gearshaft,spur, cataloged under National Stock Number 3040-00-031-2478, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Ballantyne of Omaha Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-031-2478 |
| Primary Part Number | A72131 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — No Item Name Available |
| Manufacturer | Ballantyne of Omaha Inc. |
| Status | ACTIVE |
| Pressure Angle | 20.0000 DEGREES |
| Shaft Largest Diameter | 0.312 INCHES NOMINAL IN |
| Gear Outside Diameter | 0.906 INCHES NOMINAL IN |
| Diametral Pitch | 32 |
| Face Width | 0.125 INCHES NOMINAL IN |
| Gear Material | STEEL CORROSION RESISTING |
| Shaft End Type | PLAIN |
| Gear Location on Shaft | ON END OF SHAFT |
| Shaft End Size | 0.177 INCHES IN |
| Shaft Type | SHOULDERED |
| Teeth Quantity | 27 |
| Shaft Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3040-00-031-2478 is a Gearshaft,spur, manufactured by Ballantyne of Omaha Inc., classified under FSC 3040 (No Item Name Available). Status: active.
NSN 3040-00-031-2478 has 2 cross-referenced part numbers: 72131 (Arma Div Ambac Industries Inc), A72131 (Ballantyne of Omaha Inc.).
There are 5 known substitutes for 3040-00-031-2478: 4730-00-125-7940, 5950-00-489-6997, 5910-00-961-6219 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for A72131: Pressure Angle: 20.0000 DEGREES; Shaft Largest Diameter: 0.312 INCHES NOMINAL IN; Gear Outside Diameter: 0.906 INCHES NOMINAL IN; Diametral Pitch: 32. 13 total characteristics are documented in the Federal Logistics Information System.