The Gearshaft,spur, cataloged under National Stock Number 3040-01-359-5372, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-359-5372 |
| Primary Part Number | 174806 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL COMP 4340 |
| Shaft Largest Diameter | 0.900 INCHES NOMINAL IN |
| Shaft End Size | 0.781 INCHES AND 0.472 INCHES IN |
| Teeth Quantity | 16 |
| Diametral Pitch | 24 |
| Gear Outside Diameter | 0.779 INCHES NOMINAL IN |
| Longer Shaft Segment Length | 1.445 INCHES NOMINAL IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MINIMUM OVERALL |
| Gear Material | STEEL COMP 4340 |
| Shaft End Type | CIRCULAR GROOVED AND PLAIN |
| Gear Location on Shaft | OFF CENTER BETWEEN ENDS OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 0.400 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 |
|---|---|
| 174806 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 174806 | C/1 Advisory reference — outside the item-of-supply concept Electromechanical Systems, Inc. |
NSN 3040-01-359-5372 is a Gearshaft,spur, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-359-5372 has 1 manufacturer part number on file: 174806 (Northrop Grumman Systems Corporation).
Key specifications for 174806: Shaft Type: SHOULDERED; Shaft Material: STEEL COMP 4340; Shaft Largest Diameter: 0.900 INCHES NOMINAL IN; Shaft End Size: 0.781 INCHES AND 0.472 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.