The Gear,worm Wheel, cataloged under National Stock Number 3020-00-732-7953, 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 Us Army Aviation and Missile Command. 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 | 3020-00-732-7953 |
| Primary Part Number | 9143131 |
| Item Name | Gear,worm Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.249 INCHES BOTH ENDS IN |
| Helix Angle | 3.4666 DEGREES |
| Teeth Quantity | 20 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.284 INCHES FIRST END IN |
| First Step Nominal Length | 0.104 INCHES FIRST END IN |
| Face Type | STRAIGHT |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-B-663,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.4174 INCHES NOMINAL IN |
| First Step Nominal Diameter | 0.340 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| End Nominal Length | 0.180 INCHES FIRST END IN |
| Nominal Outside Diameter | 0.456 INCHES IN |
| End Nominal Diameter | 0.440 INCHES FIRST END IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | COPPER ALLOY OVERALL |
| Face Nominal Width | 0.156 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 |
|---|---|
| 9143131 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 3020-00-732-7953 is a Gear,worm Wheel, manufactured by Us Army Aviation and Missile Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-732-7953 has 1 manufacturer part number on file: 9143131 (Us Army Aviation and Missile Command).
Key specifications for 9143131: Bore Nominal Diameter: 0.249 INCHES BOTH ENDS IN; Helix Angle: 3.4666 DEGREES; Teeth Quantity: 20; Body Style: PLAIN, 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.