The Gear,worm Wheel, cataloged under National Stock Number 3020-00-338-9575, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 50 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-338-9575 |
| Item Name | Gear,worm Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Nominal Diameter | 2.375 INCHES FIRST END IN |
| Hub Nominal Diameter | 2.125 INCHES SECOND END IN |
| Teeth Quantity | 31 |
| Tooth Direction | RIGHT |
| Nominal Overall Length | 3.124 INCHES IN |
| Material Document and Classification | MIL-B-16540,GRADE A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 6.4700 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 7.0000 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.8480 INCHES BOTH ENDS IN |
| Material | COPPER ALLOY 903 OVERALL |
| Mating Thread Lead Quantity | 6 |
| Face Nominal Width | 1.500 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 |
|---|---|
| AD14S55-034PC78 | 3/2 Design control — primary reference U.S. Government activity |
| G9666PC78 | 5/9 Secondary reference Imo Industries Inc Delroyd Worm Gear Div |
| G9661PC78 | 5/9 Secondary reference Siemens Energy, Inc. |
| AV7S45-16PC78 | 3/2 Design control — primary reference U.S. Government activity |
| G9884PC94 | 5/9 Secondary reference Siemens Energy, Inc. |
| CM5S5500-053PC78 | 3/2 Design control — primary reference U.S. Government activity |
| AR5S45-064PC78 | 3/2 Design control — primary reference U.S. Government activity |
| G9890PC94 | 5/9 Secondary reference Imo Industries Inc Delroyd Worm Gear Div |
| AD14S45-035PC78 | 3/2 Design control — primary reference U.S. Government activity |
| G7774PC78 | 5/9 Secondary reference Imo Industries Inc Delroyd Worm Gear Div |
| G7933PC78 | 5/9 Secondary reference Imo Industries Inc Delroyd Worm Gear Div |
| G5811PC69 | 5/9 Secondary reference Imo Industries Inc Delroyd Worm Gear Div |
| W50AS4X10 | 5/9 Secondary reference Siemens Energy, Inc. |
| G7938PC78 | 5/9 Secondary reference Siemens Energy, Inc. |
| G9722PC78 | 5/9 Secondary reference Imo Industries Inc Delroyd Worm Gear Div |
| AR5S55-023PC78 | 3/2 Design control — primary reference U.S. Government activity |
| AV7S45-87PC78 | 3/2 Design control — primary reference U.S. Government activity |
| CL49S45-017PC69 | 3/2 Design control — primary reference U.S. Government activity |
| G9884PC94 | 5/9 Secondary reference Imo Industries Inc Delroyd Worm Gear Div |
| G7933PC78 | 5/9 Secondary reference Siemens Energy, Inc. |
NSN 3020-00-338-9575 is a Gear,worm Wheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-338-9575: Hub Nominal Diameter: 2.375 INCHES FIRST END IN; Hub Nominal Diameter: 2.125 INCHES SECOND END IN; Teeth Quantity: 31; Tooth Direction: RIGHT. 13 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.