The Gear,bevel, cataloged under National Stock Number 3020-00-073-9942, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-073-9942 |
| Primary Part Number | 8212650 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc |
| Status | ACTIVE |
| Keyway Nominal Width | 0.127 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.751 INCHES BOTH ENDS IN |
| Teeth Quantity | 21 |
| Body Style | PLAIN, SOLID |
| Pitch Angle | 32.4667 DEGREES |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Teeth Type | STRAIGHT |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 29.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PERIPHERAL FACE, HUBLESS |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 1141 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.1000 INCHES NOMINAL IN |
| Nominal Outside Diameter | 2.269 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.441 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 |
| Part Number | Manufacturer |
|---|---|
| 8212650 PRIMARY | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc (USA) |
| Reference | Meaning |
|---|---|
| 8212650 | 3/9 Design control — primary reference General Motors Corp Electro-Motive Div |
| 8212650 | 5/9 Secondary reference General Motors Corp |
NSN 3020-00-073-9942 is a Gear,bevel, manufactured by Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-073-9942 has 1 manufacturer part number on file: 8212650 (Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc).
Key specifications for 8212650: Keyway Nominal Width: 0.127 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.751 INCHES BOTH ENDS IN; Teeth Quantity: 21; Body Style: PLAIN, SOLID. 16 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.