The Gear,bevel, cataloged under National Stock Number 3020-00-574-6571, 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 24 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-574-6571 |
| Primary Part Number | NL0774-1 |
| Item Name | Gear,bevel |
| 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 |
| Bore Nominal Diameter | 2.100 INCHES BOTH ENDS IN |
| Teeth Quantity | 36 |
| Second Step Nominal Diameter | 2.990 INCHES SECOND END IN |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 2.3125 INCHES FIRST END IN |
| Pitch Angle | 22.0000 DEGREES |
| Bore Style | W/COUNTERBORE COUNTERBORE FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 5.070 INCHES SECOND END IN |
| First Step Nominal Length | 1.000 INCHES SECOND END IN |
| Teeth Type | STRAIGHT |
| Nominal Overall Length | 6.015 INCHES IN |
| Second Step Nominal Length | 3.050 INCHES SECOND END IN |
| Style Designator | PERIPHERAL FACE, BACK HUB PROTRUDING |
| Pitch Diameter | 4.5000 INCHES NOMINAL IN |
| First Step Nominal Diameter | 2.943 INCHES SECOND END IN |
| Hub Style Designator | 1 STEP SECOND END |
| End Nominal Length | 1.000 INCHES SECOND END IN |
| Nominal Outside Diameter | 4.6120 INCHES IN |
| End Nominal Diameter | 2.875 INCHES SECOND END IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 2.345 INCHES FIRST END IN |
| Body Recess Nominal Depth | 0.2000 INCHES FIRST END IN |
| Face Nominal Width | 0.875 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 |
|---|---|
| NL0774-1 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| NL774 | 5/9 Secondary reference U.S. Government activity |
| NL0774-1 | 5/9 Secondary reference Dresser-Rand Company |
| NL0774-1 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3020-00-574-6571 is a Gear,bevel, 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 3020-00-574-6571 has 1 manufacturer part number on file: NL0774-1 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions).
Key specifications for NL0774-1: Bore Nominal Diameter: 2.100 INCHES BOTH ENDS IN; Teeth Quantity: 36; Second Step Nominal Diameter: 2.990 INCHES SECOND END IN; Body Style: PLAIN, SOLID. 24 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.