The Gear,spur, cataloged under National Stock Number 3020-00-451-4669, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 22 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-451-4669 |
| Primary Part Number | 0774-444 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 SETSCREW |
| Bore Nominal Diameter | 0.249 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.625 INCHES SECOND END IN |
| Hub Nominal Diameter | 0.500 INCHES FIRST END IN |
| Teeth Quantity | 144 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.240 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.010 INCHES SECOND END IN |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 3.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN SECOND END |
| Hub Style Designator | PINNED FIRST END |
| Nominal Outside Diameter | 3.041 INCHES IN |
| Surface Treatment | PASSIVATE HUB |
| Surface Treatment | ANODIZE BODY |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY TEETH |
| Material | ALUMINUM ALLOY BODY |
| Material | STEEL CORROSION RESISTING HUB |
| Face Nominal Width | 0.125 INCHES 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 |
|---|---|
| 0774-444 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 3020-00-451-4669 is a Gear,spur, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-451-4669 has 1 manufacturer part number on file: 0774-444 (Northrop Grumman Systems Corporation).
Key specifications for 0774-444: Furnished Items and Quantity: 1 SETSCREW; Bore Nominal Diameter: 0.249 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.625 INCHES SECOND END IN; Hub Nominal Diameter: 0.500 INCHES FIRST END IN. 22 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.