The Gear,bevel, cataloged under National Stock Number 3020-00-574-9888, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-00-574-9888 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 2.903 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 3.500 INCHES FIRST END IN |
| Teeth Quantity | 31 |
| Body Style | WEBBED, SOLID |
| Pitch Angle | 58.1666 DEGREES |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 1.161 INCHES SECOND END IN |
| First Step Nominal Length | 0.250 INCHES SECOND END IN |
| Teeth Type | STRAIGHT |
| Hardness Rating | 50.0 ROCKWELL C MINIMUM TEETH |
| Style Designator | SIDE FACE, FRONT HUB RECESSED, BACK HUB PROTRUDING |
| Pitch Diameter | 12.4000 INCHES NOMINAL IN |
| First Step Nominal Diameter | 4.000 INCHES SECOND END IN |
| Hub Style Designator | PLAIN FIRST END |
| Hub Style Designator | 1 STEP SECOND END |
| Spline Quantity | 28 BOTH ENDS |
| End Nominal Length | 1.160 INCHES SECOND END IN |
| Nominal Outside Diameter | 12.745 INCHES IN |
| End Nominal Diameter | 3.543 INCHES SECOND END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Spline Pitch Diameter | 2.4249 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 2.250 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 |
|---|---|
| 279D564B | 3/9 Design control — primary reference Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co |
| 279D564B | 5/9 Secondary reference Koehring Co |
NSN 3020-00-574-9888 is a Gear,bevel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-574-9888: Bore Nominal Diameter: 2.903 INCHES BOTH ENDS IN; Hub Nominal Diameter: 3.500 INCHES FIRST END IN; Teeth Quantity: 31; Body Style: WEBBED, SOLID. 23 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.