The Gear,helical, cataloged under National Stock Number 3020-00-517-3222, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-517-3222 |
| Primary Part Number | 206-400 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Attachment Method | MOUNTING HOLE |
| Pitch Diameter | 2.6040 INCHES NOMINAL IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.281 INCHES FIRST END IN |
| Mounting Hole Nominal Thread Size | 0.1120 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Tooth Direction | RIGHT |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| Material | COPPER ALLOY OVERALL |
| Bore Nominal Diameter | 2.1869 INCHES BOTH ENDS IN |
| Face Nominal Width | 0.188 INCHES IN |
| End Nominal Diameter | 0.3750 INCHES FIRST END IN |
| Mounting Hole Thread Quantity Per Inch | 40 TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Outside Diameter | 2.6460 INCHES IN |
| End Nominal Length | 0.0310 INCHES FIRST END IN |
| Bore Style | PLAIN BOTH ENDS |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | NAVAL,MIL-B-994 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| First Step Nominal Diameter | 0.5000 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| First Step Nominal Length | 0.2500 INCHES FIRST END IN |
| Pressure Angle | 14.5000 DEGREES |
| Tooth Form | STANDARD |
| Helix Angle | 3.5498 DEGREES |
| Mounting Hole Type and Quantity | 1 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| Teeth Type | SINGLE HELIX |
| Teeth Quantity | 123 |
| Body Style | PLAIN, SOLID |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 979-1B444 | Gap Instrument Corp (USA) |
| 979-1B444 | Advanced Logic Resources Inc Dba Alr (USA) |
| 206-400 PRIMARY | Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp (USA) |
| B206-400 | Mckiernan-Terry Marine Div of Litton Systems Inc (USA) |
| B21343 | Litton Systems Inc Itek Optical Systems Div (USA) |
| 51280 PRIMARY | Ambac International Corporation Div Ambac International (USA) |
| R11243 | Seeburg Corp the Seeburg Products Div (USA) |
NSN 3020-00-517-3222 is a Gear,helical, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-517-3222 has 7 cross-referenced part numbers: 979-1B444 (Gap Instrument Corp), 979-1B444 (Advanced Logic Resources Inc Dba Alr), 206-400 (Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp), B206-400 (Mckiernan-Terry Marine Div of Litton Systems Inc), B21343 (Litton Systems Inc Itek Optical Systems Div) and 2 more.
There are 9 known substitutes for 3020-00-517-3222: 4330-00-278-9596, 5995-00-480-5894, 5905-00-609-9663 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 206-400: Attachment Method: MOUNTING HOLE; Pitch Diameter: 2.6040 INCHES NOMINAL IN; Nominal Distance Between Body Face and Protruding Hub End: 0.281 INCHES FIRST END IN; Mounting Hole Nominal Thread Size: 0.1120 INCHES TRANSVERSELY THROUGH HUB FIRST END IN. 26 total characteristics are documented in the Federal Logistics Information System.