The Gear,helical, cataloged under National Stock Number 3020-00-395-1884, 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 Corporation Div Marine Systems. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-395-1884 |
| Primary Part Number | 3709 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Northrop Grumman Systems Corporation Div Marine Systems |
| Status | ACTIVE |
| Teeth Quantity | 220 |
| Pressure Angle | 14.5000 DEGREES |
| Body Style | WEBBED, OFFSET, SOLID |
| Pitch Diameter | 22.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Nominal Diameter | 6.500 INCHES FIRST END IN |
| Nominal Overall Length | 5.125 INCHES IN |
| Material | STEEL OVERALL |
| Style Designator | PROTRUDING HUB, RECESSED BODY |
| Material Document and Classification | MIL-S-890,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Distance Between Body Face and Protruding Hub End | 1.375 INCHES FIRST END IN |
| Tooth Direction | RIGHT |
| Bore Style | TAPERED W/KEYWAY SECOND END |
| Nominal Outside Diameter | 22.1670 INCHES IN |
| Teeth Type | SINGLE HELIX |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| D15-625DPC44 | Westinghouse Electric Corp Sturtevant Div (USA) |
| 3709 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| 3709 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-625DPC44 | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
NSN 3020-00-395-1884 is a Gear,helical, manufactured by Northrop Grumman Systems Corporation Div Marine Systems, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-395-1884 has 4 cross-referenced part numbers: D15-625DPC44 (Westinghouse Electric Corp Sturtevant Div), 3709 (Northrop Grumman Systems Corporation Div Marine Systems), 3709 (Westinghouse Electric Corp Sturtevant Div), D15-625DPC44 (Northrop Grumman Systems Corporation Div Marine Systems).
There are 11 known substitutes for 3020-00-395-1884: 5306-00-206-6283, 5998-01-043-3093, 2530-01-096-6764 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 3709: Teeth Quantity: 220; Pressure Angle: 14.5000 DEGREES; Body Style: WEBBED, OFFSET, SOLID; Pitch Diameter: 22.0000 INCHES NOMINAL IN. 15 total characteristics are documented in the Federal Logistics Information System.