The Gearshaft,spur, cataloged under National Stock Number 3040-00-671-0442, 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 Dba Northrop Grumman Systems Corp. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-671-0442 |
| Primary Part Number | 118318 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Teeth Quantity | 103 |
| Gear Outside Diameter | 1.531 INCHES NOMINAL IN |
| Gear Material | COPPER ALLOY |
| Shaft End Type | KEYWAY FLAT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 0.187 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 |
|---|---|
| 118318 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 540-8197-002 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-671-0442 is a Gearshaft,spur, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-671-0442 has 1 manufacturer part number on file: 118318 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
3 possible matches (shared part number, not a government interchangeability claim): 2520-01-175-1883, 2090-01-666-1068, 1560-01-701-7554. Verify interchangeability with system specifications before substitution.
Key specifications for 118318: Teeth Quantity: 103; Gear Outside Diameter: 1.531 INCHES NOMINAL IN; Overall Length: 0.312 INCHES NOMINAL IN; Gear Material: COPPER ALLOY. 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.