The Gear,worm Wheel, cataloged under National Stock Number 3020-01-235-6045, 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 Roller Bearing Co of America, Inc Div Pic Design. 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 | 3020-01-235-6045 |
| Primary Part Number | Q3-12 |
| Item Name | Gear,worm Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.250 INCHES BOTH ENDS IN |
| Helix Angle | 3.5833 DEGREES |
| Hub Nominal Diameter | 0.5000 INCHES FIRST END IN |
| Teeth Quantity | 120 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 1 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.2188 INCHES FIRST END IN |
| Nominal Overall Length | 0.4000 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-B-637,ALLOY 464 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.8740 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN |
| Hub Style Designator | PINNED FIRST END |
| Mounting Hole Nominal Thread Size | 0.138 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Mounting Hole Thread Quantity Per Inch | 32 TRANSVERSELY THROUGH HUB FIRST END |
| Pressure Angle | 14.5000 DEGREES |
| Material | COPPER ALLOY 464 OVERALL |
| Mating Thread Lead Quantity | 2 |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.1800 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 |
|---|---|
| Q3-12 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
NSN 3020-01-235-6045 is a Gear,worm Wheel, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-235-6045 has 1 manufacturer part number on file: Q3-12 (Roller Bearing Co of America, Inc Div Pic Design).
Key specifications for Q3-12: Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Helix Angle: 3.5833 DEGREES; Hub Nominal Diameter: 0.5000 INCHES FIRST END IN; Teeth Quantity: 120. 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.