The Gear,helical, cataloged under National Stock Number 3020-00-779-6337, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-779-6337 |
| Primary Part Number | 20495 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Material | STEEL OVERALL |
| Attachment Method | MOUNTING HOLE |
| Counterbore Nominal Diameter | 4.375 INCHES FIRST END IN |
| Teeth Quantity | 78 |
| Hub Nominal Diameter | 5.000 INCHES FIRST END IN |
| Bore Nominal Diameter | 2.7500 INCHES BOTH ENDS IN |
| Bore Style | PLAIN BOTH ENDS |
| Hub Style Designator | PLAIN BOTH ENDS |
| Helix Angle | 15.0000 DEGREES |
| Hub Nominal Diameter | 4.500 INCHES SECOND END IN |
| Mounting Hole Nominal Diameter | 0.437 INCHES AXIALLY THROUGH BODY SECOND END IN |
| Pressure Angle | 20.0000 DEGREES |
| Body Style | WEBBED, OFFSET, SOLID |
| Bolt Hole Circle Nominal Diameter | 3.500 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Nominal Distance Between Body Face and Recessed Hub End | 0.843 INCHES SECOND END IN |
| Nominal Outside Diameter | 10.341 INCHES IN |
| Nominal Distance Between Body Face and Recessed Hub End | 0.718 INCHES FIRST END IN |
| Tooth Direction | LEFT |
| Mounting Hole Nominal Diameter | 0.374 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Face Nominal Width | 2.250 INCHES IN |
| Pitch Diameter | 10.0940 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Style Designator | RECESSED HUBS |
| Teeth Type | SINGLE HELIX |
| Counterbore Nominal Depth | 0.250 INCHES FIRST END IN |
| Mounting Hole Type and Quantity | 2 PLAIN AXIALLY THROUGH BODY FIRST END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3020-00-779-6337 is a Gear,helical, manufactured by Cummins Inc., classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-779-6337 has 2 cross-referenced part numbers: 20495 (La Gary Co), 20495 (Cummins Inc.).
There are 8 known substitutes for 3020-00-779-6337: 2810-00-118-7161, 5935-00-201-2753, 5935-00-433-9317 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20495: Material: STEEL OVERALL; Attachment Method: MOUNTING HOLE; Counterbore Nominal Diameter: 4.375 INCHES FIRST END IN; Teeth Quantity: 78. 27 total characteristics are documented in the Federal Logistics Information System.