The Gear,bevel, cataloged under National Stock Number 3020-00-073-9941, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-073-9941 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Keyway Nominal Width | 0.158 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.001 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.500 INCHES SECOND END IN |
| Teeth Quantity | 33 |
| Body Style | PLAIN, SOLID |
| Pitch Angle | 57.5333 DEGREES |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.125 INCHES SECOND END IN |
| Teeth Type | STRAIGHT |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 29.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 0.813 INCHES IN |
| Style Designator | PERIPHERAL FACE, BACK HUB PROTRUDING |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 1141 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.3000 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN SECOND END |
| Nominal Outside Diameter | 3.407 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.580 INCHES BOTH ENDS IN |
| Pressure Angle | 17.5000 DEGREES |
| Material | STEEL COMP 1141 OVERALL |
| 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 |
|---|---|
| 8212655 | 3/9 Design control — primary reference General Motors Corp Electro-Motive Div |
NSN 3020-00-073-9941 is a Gear,bevel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-073-9941: Keyway Nominal Width: 0.158 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.001 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.500 INCHES SECOND END IN; Teeth Quantity: 33. 20 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.