The Gear,helical, cataloged under National Stock Number 3020-00-200-1007, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 41 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-200-1007 |
| Primary Part Number | 107425PC751 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| Status | ACTIVE |
| Keyway Nominal Width | 0.750 INCHES BOTH ENDS IN |
| Helix Angle | 30.0000 DEGREES |
| Hub Nominal Diameter | 6.000 INCHES SECOND END IN |
| Hub Nominal Diameter | 6.000 INCHES FIRST END IN |
| Teeth Quantity | 120 |
| Bore Style | TAPERED W/KEYWAY SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 1.000 INCHES FIRST END IN |
| Nominal Overall Length | 5.000 INCHES IN |
| Style Designator | ONE PROTRUDING HUB, ONE RECESSED HUB |
| Material Document and Classification | MIL-S-890,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 17.1430 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 17.2570 INCHES IN |
| Pressure Angle | 17.5000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 4.000 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 107425PC751 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 119630PC751 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 242B PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 110930PC751 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 116725PC751 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 107030PC751 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 107430PC751 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 118830PC751 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 116830PC751 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| 116222PC538 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 110925PC751 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 110925PC751 | 5/9 Secondary reference U.S. Government activity |
| 107025PC751 | 5/9 Secondary reference U.S. Government activity |
| 116222PC538 | 5/9 Secondary reference U.S. Government activity |
| 118830PC751 | 5/9 Secondary reference U.S. Government activity |
| 110930PC751 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 118830PC751 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 116830PC751 | 5/9 Secondary reference U.S. Government activity |
| 116730PC751 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 107025PC751 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 107430PC751 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 119630PC751 | 5/9 Secondary reference U.S. Government activity |
| 107425PC751 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 107425PC751 | 5/9 Secondary reference U.S. Government activity |
| 107030PC751 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| AD20S49-105PC751 | 3/2 Design control — primary reference U.S. Government activity |
| 107430PC751 | 5/9 Secondary reference U.S. Government activity |
| 116830PC751 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 116730PC751 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-00-200-1007 is a Gear,helical, manufactured by Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-200-1007 has 9 manufacturer part numbers on file: 107425PC751 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 119630PC751 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 242B (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 110930PC751 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 116725PC751 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions) and 4 more.
Key specifications for 107425PC751: Keyway Nominal Width: 0.750 INCHES BOTH ENDS IN; Helix Angle: 30.0000 DEGREES; Hub Nominal Diameter: 6.000 INCHES SECOND END IN; Hub Nominal Diameter: 6.000 INCHES FIRST END IN. 17 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.