The Gear,helical, cataloged under National Stock Number 3020-00-233-9558, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Hatch & Kirk, Inc.. Government technical data includes 19 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-233-9558 |
| Primary Part Number | 3230073 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| Pitch Diameter | 8.6250 INCHES NOMINAL IN |
| Body Style | WEBBED, OFFSET, SOLID |
| Teeth Quantity | 69 |
| Style Designator | PROTRUDING HUB, RECESSED BODY |
| Hardness Rating | 10.0 ROCKWELL C MINIMUM AND 20.0 ROCKWELL C MAXIMUM OVERALL |
| Helix Angle | 25.8167 DEGREES |
| Hub Nominal Diameter | 6.750 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.313 INCHES FIRST END IN |
| Bore Nominal Diameter | 4.3750 INCHES BOTH ENDS IN |
| Tooth Form | STANDARD |
| Face Nominal Width | 1.750 INCHES IN |
| Teeth Type | SINGLE HELIX |
| Nominal Outside Diameter | 8.8740 INCHES IN |
| Nominal Overall Length | 2.062 INCHES IN |
| Material Document and Classification | MIL-S-890,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Attachment Method | MOUNTING HOLE |
| Pressure Angle | 14.5000 DEGREES |
| Tooth Direction | RIGHT |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3020-00-233-9558 is a Gear,helical, manufactured by Hatch & Kirk, Inc., classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-233-9558 has 2 cross-referenced part numbers: 3230073 (General Motors Corp Electro-Motive Div), 3230073 (Hatch & Kirk, Inc.).
There is 1 known substitute for 3020-00-233-9558: 5935-00-187-0711. Verify interchangeability with system specifications before substitution.
Key specifications for 3230073: Pitch Diameter: 8.6250 INCHES NOMINAL IN; Body Style: WEBBED, OFFSET, SOLID; Teeth Quantity: 69; Style Designator: PROTRUDING HUB, RECESSED BODY. 19 total characteristics are documented in the Federal Logistics Information System.