The Gearshaft,spur, cataloged under National Stock Number 3040-00-504-3858, 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 7 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-504-3858 |
| Primary Part Number | 1851141 |
| 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 | 30 |
| Diametral Pitch | 96 |
| Gear Outside Diameter | 0.333 INCHES NOMINAL IN |
| Pressure Angle | 14.5000 DEGREES |
| Face Width | 0.188 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 |
|---|---|
| 1851141 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 1851141 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 1876536REVCPC16 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 1876536REVCPC16 | Northrop Grumman Systems Corporation (USA) |
NSN 3040-00-504-3858 is a Gearshaft,spur, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-504-3858 has 4 manufacturer part numbers on file: 1851141 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1851141 (Northrop Grumman Systems Corporation), 1876536REVCPC16 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1876536REVCPC16 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5360-01-059-7128. Verify interchangeability with system specifications before substitution.
Key specifications for 1851141: Shaft Material: STEEL; Shaft Diameter: 0.187 INCHES NOMINAL IN; Teeth Quantity: 30; Diametral Pitch: 96. 7 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.