The Gear,helical, cataloged under National Stock Number 3020-00-696-0421, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-696-0421 |
| Primary Part Number | 26-645 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Dresser Industries Inc Leroi Div |
| Status | ACTIVE |
| Attachment Method | MOUNTING HOLE |
| Pressure Angle | 14.5000 DEGREES |
| Tooth Form | STANDARD |
| Face Nominal Width | 0.500 INCHES IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.500 INCHES FIRST END IN |
| Helix Angle | 74.5498 DEGREES |
| Nominal Outside Diameter | 1.765 INCHES IN |
| Bore Style | PLAIN BOTH ENDS |
| Material | STEEL OVERALL |
| Hub Style Designator | PLAIN FIRST END |
| Hub Nominal Diameter | 1.470 INCHES FIRST END IN |
| Teeth Quantity | 7 |
| Bore Nominal Diameter | 0.875 INCHES BOTH ENDS IN |
| Teeth Type | SINGLE HELIX |
| Style Designator | PROTRUDING HUB |
| Mounting Hole Nominal Diameter | 0.190 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Mounting Hole Type and Quantity | 1 PLAIN TRANSVERSELY THROUGH HUB FIRST END |
| Hardness Rating | 55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL |
| Tooth Direction | RIGHT |
| Material Document and Classification | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Pitch Diameter | 1.6423 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3020-00-696-0421 is a Gear,helical, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-696-0421 has 3 cross-referenced part numbers: 26-645 (Dresser, Llc), 8333226 (U S Army Tank Automotive Command Amsta-Im-Mm), 26-645 (Dresser Industries Inc Leroi Div).
There are 3 known substitutes for 3020-00-696-0421: 5330-00-084-6194, 2920-01-102-7492, 5940-01-153-1969. Verify interchangeability with system specifications before substitution.
Key specifications for 26-645: Attachment Method: MOUNTING HOLE; Pressure Angle: 14.5000 DEGREES; Tooth Form: STANDARD; Face Nominal Width: 0.500 INCHES IN. 22 total characteristics are documented in the Federal Logistics Information System.