The Gearcluster,worm-Wormwheel, cataloged under National Stock Number 3020-00-651-4306, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-00-651-4306 |
| Item Name | Gearcluster,worm-Wormwheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| General Characteristics Item Description | BRONZE,2.500 IN. O/A LG,W/0.625 IN. DIA THROUGH BORE,1.877 IN. OD BY 0.625 IN. LG WORMWHEEL W/28 RH TEETH,0.875 IN. LG BY 1.090 IN. OD WORM W/DOUBLE RH THD IN |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 2JB995-2 | 5/9 Secondary reference U.S. Government activity |
| 2JB0995-2 | 5/2 Secondary reference U.S. Government activity |
| 2-JB-995-2 | 3/2 Design control — primary reference U.S. Government activity |
| 2JB995-2 | 5/9 Secondary reference Westinghouse Electric Corp |
NSN 3020-00-651-4306 is a Gearcluster,worm-Wormwheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-651-4306: General Characteristics Item Description: BRONZE,2.500 IN. O/A LG,W/0.625 IN. DIA THROUGH BORE,1.877 IN. OD BY 0.625 IN. LG WORMWHEEL W/28 RH TEETH,0.875 IN. LG BY 1.090 IN. OD WORM W/DOUBLE RH THD IN; Criticality Code Justification: FEAT; Special Features: WEAPON SYSTEM ESSENTIAL; End Item Identification: MOORED TRAINING SHIP; 2000KW TURBINE STEAM GENERATOR. 2 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.