The Gear,helical, cataloged under National Stock Number 3020-00-908-6678, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Atwood Fence Co Inc. Government technical data includes 19 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-908-6678 |
| Primary Part Number | 55855 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Atwood Fence Co Inc |
| Status | ACTIVE |
| Hub Style Designator | PLAIN BOTH ENDS |
| Pitch Diameter | 4.9176 INCHES NOMINAL IN |
| Teeth Quantity | 57 |
| Helix Angle | 15.0000 DEGREES |
| Face Nominal Width | 0.750 INCHES IN |
| Teeth Type | SINGLE HELIX |
| Nominal Distance Between Body Face and Protruding Hub End | 0.563 INCHES FIRST END IN |
| Hub Nominal Diameter | 2.125 INCHES FIRST END IN |
| Style Designator | ONE PROTRUDING HUB, ONE FLUSH HUB |
| Bore Style | PLAIN BOTH ENDS |
| Tooth Direction | RIGHT |
| Material | STEEL OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Tooth Form | SPECIAL |
| Body Style | WEBBED, SOLID |
| Bore Nominal Diameter | 1.5625 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.125 INCHES SECOND END IN |
| Nominal Outside Diameter | 5.0361 INCHES IN |
| Furnished Items and Quantity | 1 EXTERNALLY LUBRICATED BEARING |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3020-00-908-6678 is a Gear,helical, manufactured by Atwood Fence Co Inc, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-908-6678 has 3 cross-referenced part numbers: 55855 (Atwood Fence Co Inc), 55855 (Chrysler Realty Company Llc Dba Daimler Chrysler), 41115038 (Perkins Engines Inc).
There are 4 known substitutes for 3020-00-908-6678: 5360-00-083-5923, 3110-00-100-6160, 6930-00-594-8045 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 55855: Hub Style Designator: PLAIN BOTH ENDS; Pitch Diameter: 4.9176 INCHES NOMINAL IN; Teeth Quantity: 57; Helix Angle: 15.0000 DEGREES. 19 total characteristics are documented in the Federal Logistics Information System.