The Gear,helical, cataloged under National Stock Number 3020-00-204-3640, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Emerson Electric Co U S Electrical Motors Div. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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 | 3020-00-204-3640 |
| Primary Part Number | XC37127 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Emerson Electric Co U S Electrical Motors Div |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.500 INCHES BOTH ENDS IN |
| Teeth Type | SINGLE HELIX |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Attachment Method | MOUNTING HOLE |
| Nominal Distance Between Body Face and Recessed Hub End | 0.195 INCHES BOTH ENDS IN |
| Teeth Quantity | 102 |
| Pitch Diameter | 8.9879 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Tooth Direction | RIGHT |
| Mounting Hole Type and Quantity | 3 PLAIN AND 2 THREADED AXIALLY THROUGH BODY FIRST END |
| Body Style | WEBBED, SOLID |
| Helix Angle | 29.1949 DEGREES |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH BODY FIRST END |
| Keyway Nominal Width | 0.375 INCHES BOTH ENDS IN |
| Bolt Hole Circle Nominal Diameter | 5.500 INCHES AND 4.000 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Hardness Rating | 31.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| Mounting Hole Nominal Thread Size | 0.375 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Nominal Outside Diameter | 9.1395 INCHES IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Mounting Hole Nominal Diameter | 0.500 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Material | STEEL COMP 4142 OVERALL |
| Nominal Distance From Bore Center to Keyway Bottom | 0.937 INCHES FIRST END IN |
| Style Designator | RECESSED HUBS |
| Pressure Angle | 20.0000 DEGREES |
| Hub Nominal Diameter | 3.000 INCHES BOTH ENDS IN |
| Face Nominal Width | 3.194 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3020-00-204-3640 is a Gear,helical, manufactured by Emerson Electric Co U S Electrical Motors Div, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-204-3640 has 3 cross-referenced part numbers: XC37127 (Emerson Electric Co U S Electrical Motors Div), 41179 (Emerson Electric Co U S Electrical Motors Div), 41179 (U M C Electronics Co).
There are 4 known substitutes for 3020-00-204-3640: 5133-00-228-1364, 5950-00-879-6862, 3130-01-227-3839 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for XC37127: Bore Nominal Diameter: 1.500 INCHES BOTH ENDS IN; Teeth Type: SINGLE HELIX; Bore Style: W/ KEYWAY BOTH ENDS; Attachment Method: MOUNTING HOLE. 27 total characteristics are documented in the Federal Logistics Information System.