The Gear,worm, cataloged under National Stock Number 3020-01-077-7430, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-077-7430 |
| Item Name | Gear,worm |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Thread Form Direction | RIGHT-HAND |
| Bore Nominal Diameter | 0.205 INCHES BOTH ENDS IN |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.410 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.440 INCHES FIRST END IN |
| First Step Nominal Length | 0.130 INCHES BOTH ENDS IN |
| Nominal Overall Length | 1.475 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 0.6366 INCHES NOMINAL IN |
| First Step Nominal Diameter | 0.500 INCHES BOTH ENDS IN |
| Hub Style Designator | 1 STEP BOTH ENDS |
| Thread Form Quantity | 12 |
| End Nominal Length | 0.310 INCHES FIRST END IN |
| End Nominal Length | 0.410 INCHES SECOND END IN |
| Nominal Outside Diameter | 0.719 INCHES IN |
| End Nominal Diameter | 0.374 INCHES BOTH ENDS IN |
| Pressure Angle | 14.0000 DEGREES |
| Face Nominal Width | 0.625 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 |
|---|---|
| 39-27797-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-077-7430 is a Gear,worm, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-077-7430: Thread Form Direction: RIGHT-HAND; Bore Nominal Diameter: 0.205 INCHES BOTH ENDS IN; Bore Style: PLAIN BOTH ENDS; Nominal Distance Between Body Face and Protruding Hub End: 0.410 INCHES SECOND END IN. 18 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.