The Gear,worm Wheel, cataloged under National Stock Number 3020-00-846-8553, 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 Caterpillar Inc Div Caterpillar Defense. Government technical data includes 21 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 | 3020-00-846-8553 |
| Primary Part Number | 2H6945 |
| Item Name | Gear,worm Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Bore Nominal Diameter | 9.220 INCHES COUNTERBORE FIRST END IN |
| Helix Angle | 4.8500 DEGREES |
| Teeth Quantity | 42 |
| Body Style | WEBBED, OFFSET, SOLID |
| Counterbore Nominal Diameter | 11.993 INCHES COUNTERBORE FIRST END IN |
| Tooth Direction | RIGHT |
| Bore Style | W/COUNTERBORE FIRST END |
| Mounting Hole Type and Quantity | 6 PLAIN AXIALLY THROUGH BODY FIRST END |
| Throat Nominal Radius | 1.633 INCHES IN |
| Face Type | CONCAVE |
| Mounting Hole Nominal Diameter | 0.641 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Style Designator | HUBLESS |
| Pitch Diameter | 14.0000 INCHES NOMINAL IN |
| Nominal Outside Diameter | 14.997 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY OVERALL |
| Bolt Hole Circle Nominal Diameter | 10.750 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Counterbore Nominal Depth | 0.250 INCHES COUNTERBORE FIRST END IN |
| Mating Thread Lead Quantity | 1 |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 2.750 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 |
|---|---|
| 2H6945 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 3020-00-846-8553 is a Gear,worm Wheel, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-846-8553 has 1 manufacturer part number on file: 2H6945 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 2H6945: Bore Nominal Diameter: 9.220 INCHES COUNTERBORE FIRST END IN; Helix Angle: 4.8500 DEGREES; Teeth Quantity: 42; Body Style: WEBBED, OFFSET, SOLID. 21 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.