The Gear,spur, cataloged under National Stock Number 3020-01-141-9846, 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 Trident Maritime Systems Uk Limited. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-141-9846 |
| Primary Part Number | 20574/200.9 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Trident Maritime Systems Uk Limited |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.188 INCHES BOTH ENDS0.188 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.500 INCHES FIRST END0.500 INCHES FIRST END IN |
| Teeth Quantity | 2020 |
| Body Style | PLAIN, SOLIDPLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDSPLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.100 INCHES FIRST END0.100 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUBPROTRUDING HUB |
| Pitch Diameter | 0.6670 INCHES NOMINAL0.6670 INCHES NOMINAL IN |
| Tooth Form | STANDARDSTANDARD |
| Hub Style Designator | PLAIN FIRST ENDPLAIN FIRST END |
| Nominal Outside Diameter | 0.732 INCHES0.732 INCHES IN |
| Pressure Angle | 20.0000 DEGREES20.0000 DEGREES |
| Material | STEEL CORROSION RESISTING OVERALL |
| Face Nominal Width | 0.070 INCHES0.070 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 |
|---|---|
| 20574/200.9 PRIMARY | Trident Maritime Systems Uk Limited (GBR) |
| Reference | Meaning |
|---|---|
| 20574/200.9 | 3/9 Design control — primary reference Aeronautical & General Instruments Limited |
NSN 3020-01-141-9846 is a Gear,spur, manufactured by Trident Maritime Systems Uk Limited, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-141-9846 has 1 manufacturer part number on file: 20574/200.9 (Trident Maritime Systems Uk Limited).
Key specifications for 20574/200.9: Bore Nominal Diameter: 0.188 INCHES BOTH ENDS0.188 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.500 INCHES FIRST END0.500 INCHES FIRST END IN; Teeth Quantity: 2020; Body Style: PLAIN, SOLIDPLAIN, SOLID. 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.