The Gear,worm Wheel, cataloged under National Stock Number 3020-01-271-0188, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-271-0188 |
| Item Name | Gear,worm Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.250 INCHES BOTH ENDS IN |
| Helix Angle | 1.0472 DEGREES |
| Hub Nominal Diameter | 2.750 INCHES BOTH ENDS IN |
| Teeth Quantity | 36 |
| Body Style | WEBBED, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 3 THREADED TRANSVERSELY THROUGH FACE |
| Nominal Distance Between Body Face and Protruding Hub End | 2.000 INCHES BOTH ENDS IN |
| Face Type | STRAIGHT |
| Style Designator | ONE PROTRUDING HUB, ONE FLUSH HUB |
| Pitch Diameter | 6.0000 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Mounting Hole Nominal Thread Size | 0.125 INCHES AND 0.312 INCHES TRANSVERSELY THROUGH FACE IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | COPPER ALLOY OVERALL |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH FACE |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 1.000 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 |
| Reference | Meaning |
|---|---|
| 14346001-1 | 5/9 Secondary reference U.S. Government activity |
| BWG636-2 | 5/1 Secondary reference Emerson Electric Co Browning Mfg Div |
| 14346001-1 | 3/9 Design control — primary reference Gulf Coast Holdings, Inc Dba Unidynamics |
| 14346001-1 | 5/2 Secondary reference U.S. Government activity |
NSN 3020-01-271-0188 is a Gear,worm Wheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-271-0188: Bore Nominal Diameter: 1.250 INCHES BOTH ENDS IN; Helix Angle: 1.0472 DEGREES; Hub Nominal Diameter: 2.750 INCHES BOTH ENDS IN; Teeth Quantity: 36. 19 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.