The Gear,spur, cataloged under National Stock Number 3020-00-390-0791, 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 Cnh Industrial America Llc Dba Cnh America. Government technical data includes 18 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-390-0791 |
| Primary Part Number | A50511 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Cnh Industrial America Llc Dba Cnh America |
| Status | ACTIVE |
| Bore Nominal Diameter | 2.239 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.500 INCHES BOTH ENDS IN |
| Teeth Quantity | 51 |
| Body Style | WEBBED, SOLID |
| Bore Style | STRAIGHT SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.253 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 1.049 INCHES SECOND END IN |
| Hardness Rating | 59.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | QQ-S-264 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 8.5000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Spline Quantity | 6 BOTH ENDS |
| Nominal Outside Diameter | 8.817 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 8620H OVERALL |
| Face Nominal Width | 0.688 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 |
|---|---|
| A50511 PRIMARY | Cnh Industrial America Llc Dba Cnh America (USA) |
NSN 3020-00-390-0791 is a Gear,spur, manufactured by Cnh Industrial America Llc Dba Cnh America, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-390-0791 has 1 manufacturer part number on file: A50511 (Cnh Industrial America Llc Dba Cnh America).
Key specifications for A50511: Bore Nominal Diameter: 2.239 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.500 INCHES BOTH ENDS IN; Teeth Quantity: 51; Body Style: WEBBED, SOLID. 18 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.