The Gearshaft,spur, cataloged under National Stock Number 3040-00-504-3940, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-504-3940 |
| Primary Part Number | 1851247 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Shaft Material | STEEL |
| Shaft Diameter | 0.187 INCHES NOMINAL IN |
| Teeth Quantity | 24 |
| Diametral Pitch | 96 |
| Gear Outside Diameter | 0.270 INCHES NOMINAL IN |
| Pressure Angle | 14.5000 DEGREES |
| 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 |
|---|---|
| 1851247 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 1876537REVHPC55 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 1876537REVHPC55 | Northrop Grumman Systems Corporation (USA) |
| 1851247 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
NSN 3040-00-504-3940 is a Gearshaft,spur, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-504-3940 has 4 manufacturer part numbers on file: 1851247 (Northrop Grumman Systems Corporation), 1876537REVHPC55 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1876537REVHPC55 (Northrop Grumman Systems Corporation), 1851247 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 1851247: Shaft Material: STEEL; Shaft Diameter: 0.187 INCHES NOMINAL IN; Teeth Quantity: 24; Diametral Pitch: 96. 6 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.