The Gear,helical, cataloged under National Stock Number 3020-00-517-2834, 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 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-517-2834 |
| Primary Part Number | 6103 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Northrop Grumman Systems Corporation Div Marine Systems |
| Status | ACTIVE |
| Material | STEEL OVERALL |
| Teeth Quantity | 55 |
| Pitch Diameter | 5.5000 INCHES NOMINAL IN |
| Face Nominal Width | 0.500 INCHES IN |
| Hub Style Designator | PLAIN FIRST END |
| Body Style | PLAIN, SOLID |
| Nominal Outside Diameter | 5.6670 INCHES IN |
| Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Keyway Nominal Width | 0.250 INCHES BOTH ENDS IN |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Hub Nominal Diameter | 2.125 INCHES FIRST END IN |
| Teeth Type | SINGLE HELIX |
| Nominal Distance Between Body Face and Protruding Hub End | 0.250 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Tooth Form | STANDARD |
| Nominal Distance From Bore Center to Keyway Bottom | 0.5312 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.8750 INCHES BOTH ENDS IN |
| Tooth Direction | LEFT |
| Helix Angle | 0.1666 DEGREES |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | MIL-S-890,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 6103 | Westinghouse Electric Corp Sturtevant Div (USA) |
| 6103 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| 6103 | Westinghouse Electric Corp (USA) |
| D15-460-L PIECE 415 | Westinghouse Electric Corp Sturtevant Div (USA) |
NSN 3020-00-517-2834 is a Gear,helical, manufactured by Northrop Grumman Systems Corporation Div Marine Systems, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-517-2834 has 4 cross-referenced part numbers: 6103 (Westinghouse Electric Corp Sturtevant Div), 6103 (Northrop Grumman Systems Corporation Div Marine Systems), 6103 (Westinghouse Electric Corp), D15-460-L PIECE 415 (Westinghouse Electric Corp Sturtevant Div).
There are 12 known substitutes for 3020-00-517-2834: 5935-00-050-0705, 5365-00-307-6816, 3110-00-555-5233 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 6103: Material: STEEL OVERALL; Teeth Quantity: 55; Pitch Diameter: 5.5000 INCHES NOMINAL IN; Face Nominal Width: 0.500 INCHES IN. 21 total characteristics are documented in the Federal Logistics Information System.