The Gear,helical, cataloged under National Stock Number 3020-00-517-3249, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 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 | 3020-00-517-3249 |
| Primary Part Number | 206-401 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Face Nominal Width | 0.188 INCHES IN |
| Body Style | WEBBED, OFFSET, SOLID |
| Bore Nominal Diameter | 0.3123 INCHES BOTH ENDS IN |
| Tooth Direction | RIGHT |
| Pitch Diameter | 1.8750 INCHES NOMINAL IN |
| Pressure Angle | 14.5000 DEGREES |
| Helix Angle | 3.5832 DEGREES |
| Nominal Outside Diameter | 1.9170 INCHES IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Teeth Quantity | 90 |
| Material Document and Classification | NAVAL,MIL-B-994 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | COPPER ALLOY OVERALL |
| Teeth Type | SINGLE HELIX |
| Hub Nominal Diameter | 0.500 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.062 INCHES FIRST END IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| B21337 | Litton Systems Inc Itek Optical Systems Div (USA) |
| 979-1B445 | Advanced Logic Resources Inc Dba Alr (USA) |
| 979-1B445 | Gap Instrument Corp (USA) |
| 206-401 PRIMARY | Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp (USA) |
| R11236 | Seeburg Corp the Seeburg Products Div (USA) |
| 51281 PRIMARY | Ambac International Corporation Div Ambac International (USA) |
NSN 3020-00-517-3249 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 3020-00-517-3249 has 6 cross-referenced part numbers: B21337 (Litton Systems Inc Itek Optical Systems Div), 979-1B445 (Advanced Logic Resources Inc Dba Alr), 979-1B445 (Gap Instrument Corp), 206-401 (Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp), R11236 (Seeburg Corp the Seeburg Products Div) and 1 more.
There are 9 known substitutes for 3020-00-517-3249: 5340-00-143-0248, 5305-00-286-0520, 5325-00-397-5962 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 206-401: Face Nominal Width: 0.188 INCHES IN; Body Style: WEBBED, OFFSET, SOLID; Bore Nominal Diameter: 0.3123 INCHES BOTH ENDS IN; Tooth Direction: RIGHT. 18 total characteristics are documented in the Federal Logistics Information System.