The Gear,internal, cataloged under National Stock Number 3020-00-528-6807, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-528-6807 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Keyway Nominal Width | 0.250 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.322 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.968 INCHES FIRST END IN |
| Teeth Quantity | 43 |
| Body Style | PLAIN, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 1.250 INCHES BOTH ENDS IN |
| Teeth Type | SPUR |
| Hardness Rating | 47.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM HUB |
| Hardness Rating | 47.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM TEETH |
| Nominal Overall Length | 2.875 INCHES IN |
| Style Designator | SOLID BACK RING, PROTRUDING HUB, RECESSED HUB |
| Material Document and Classification | SAE J778,COMP 6145 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.3000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 5.0625 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.783 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 6145 OVERALL |
| Face Nominal Width | 1.125 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 |
|---|---|
| 14U1033PCDA6916 | 3/2 Design control — primary reference U.S. Government activity |
| D0-7499 | 5/9 Secondary reference Emerson Power Transmission Corporation Div Ept |
NSN 3020-00-528-6807 is a Gear,internal, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-528-6807: Keyway Nominal Width: 0.250 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.322 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.968 INCHES FIRST END IN; Teeth Quantity: 43. 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.