PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1770770Gear,spur

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 3020-00-050-6839 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-050-6839 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-050-6839. Primary manufacturer part number: 1770770.
Features
  • Gear,spur — FSC 3020
  • Teeth Quantity: 45
  • Nominal Outside Diameter: 1.9570 INCHES IN
  • Body Style: PLAIN, SOLID
  • Style Designator: HUBLESS
  • Pitch Diameter: 1.8740 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
  • Face Nominal Width: 0.120 INCHES IN
  • Pressure Angle: 14.5000 DEGREES
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Aluminum Alloy 6061 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-050-6839, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-050-6839
Primary Part Number1770770
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Teeth Quantity45
Nominal Outside Diameter1.9570 INCHES IN
Body StylePLAIN, SOLID
Style DesignatorHUBLESS
Pitch Diameter1.8740 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
Face Nominal Width0.120 INCHES IN
Pressure Angle14.5000 DEGREES
Precision ClassificationQUALITY NUMBER 10
Bore Nominal Diameter0.375 INCHES BOTH ENDS IN
Tooth FormSTANDARD
MaterialALUMINUM ALLOY 6061 OVERALL
Material Document and ClassificationQQ-A-250/11,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Bore StylePLAIN BOTH ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5950-00-004-0220984660-1 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon
3120-00-148-381041352 INTERCHANGEABLE
Roller,linear-Rotary Motion
L3harris Technologies, Inc Div Space & Airborne Systems
5930-00-273-0769 INTERCHANGEABLE
Switch,box
5133-01-095-4782 INTERCHANGEABLE
Drill,twist
4820-01-261-1042010-303-0088 INTERCHANGEABLE
Seat,valve
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
3040-01-483-232841352 INTERCHANGEABLE
Rod,piston,linear Actuating Cyli
Moog Inc. Dba Ampac-Isp Corp
5305-01-616-32765717140 INTERCHANGEABLE
Screw,machine
Am General Llc
5935-01-620-040641352 INTERCHANGEABLE
Adapter,connector
Cables to Go
Cross-Reference Index
Part NumberManufacturer
41-352 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
1770770 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5950-00-004-0220INTERCHANGEABLE
TRANSFORMER,POWER
984660-1
3120-00-148-3810INTERCHANGEABLE
ROLLER,LINEAR-ROTARY MOTION
41352
5930-00-273-0769INTERCHANGEABLE
SWITCH,BOX
5133-01-095-4782INTERCHANGEABLE
DRILL,TWIST
4820-01-261-1042INTERCHANGEABLE
SEAT,VALVE
010-303-0088
3040-01-483-2328INTERCHANGEABLE
ROD,PISTON,LINEAR ACTUATING CYLI
41352
5305-01-616-3276INTERCHANGEABLE
SCREW,MACHINE
5717140
5935-01-620-0406INTERCHANGEABLE
ADAPTER,CONNECTOR
41352

Frequently Asked Questions

What is NSN 3020-00-050-6839?

NSN 3020-00-050-6839 is a Gear,spur, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-050-6839?

NSN 3020-00-050-6839 has 2 cross-referenced part numbers: 41-352 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1770770 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 3020-00-050-6839?

There are 8 known substitutes for 3020-00-050-6839: 5950-00-004-0220, 3120-00-148-3810, 5930-00-273-0769 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1770770?

Key specifications for 1770770: Teeth Quantity: 45; Nominal Outside Diameter: 1.9570 INCHES IN; Body Style: PLAIN, SOLID; Style Designator: HUBLESS. 13 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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