PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1770740Gear,spur

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 3020-00-050-6844 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-050-6844 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-050-6844. Primary manufacturer part number: 1770740.
Features
  • Gear,spur — FSC 3020
  • Body Style: PLAIN, SOLID
  • Precision Classification: QUALITY NUMBER 10 OR QUALITY NUMBER 11
  • Pressure Angle: 20.0000 DEGREES
  • Hub Nominal Diameter: 0.375 INCHES FIRST END IN
  • Teeth Quantity: 88
  • Material: ALUMINUM ALLOY 6061 OVERALL
  • Hub Style Designator: PINNED FIRST END
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 3020-00-050-6844, 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 16 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
NSN3020-00-050-6844
Primary Part Number1770740
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Body StylePLAIN, SOLID
Precision ClassificationQUALITY NUMBER 10 OR QUALITY NUMBER 11
Pressure Angle20.0000 DEGREES
Hub Nominal Diameter0.375 INCHES FIRST END IN
Teeth Quantity88
MaterialALUMINUM ALLOY 6061 OVERALL
Hub Style DesignatorPINNED FIRST END
Nominal Outside Diameter1.874 INCHES IN
Material Document and ClassificationQQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Bore StylePLAIN BOTH ENDS
Nominal Distance Between Body Face and Protruding Hub End0.200 INCHES FIRST END IN
Bore Nominal Diameter0.187 INCHES BOTH ENDS IN
Tooth FormSTANDARD
Style DesignatorPROTRUDING HUB
Face Nominal Width0.095 INCHES IN
Pitch Diameter1.8323 INCHES MINIMUM AND 1.8333 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5950-00-222-77494-1681 INTERCHANGEABLE
Transformer,power
Tranex, Inc.
5310-00-238-7940BD87 INTERCHANGEABLE
Washer,flat
Dresser, Llc
5365-00-790-369041681 INTERCHANGEABLE
Ring,light
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
5950-01-028-66892889406-1 INTERCHANGEABLE
Transformer,audio Frequency
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5995-01-063-2242 INTERCHANGEABLE
Wiring Harness,branched
6105-01-167-7943 INTERCHANGEABLE
Motor,alternating Current
3040-01-437-144941681 INTERCHANGEABLE
Ear,cylinder Pipe
Kongsberg Maritime Sweden Ab
5930-01-508-758341-681 INTERCHANGEABLE
Switch,push-Pull
Thermo King Corporation Dba Phoenix Global Distirbution.
Cross-Reference Index
Part NumberManufacturer
1770740 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
41-681 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
Related Parts
5950-00-222-7749INTERCHANGEABLE
TRANSFORMER,POWER
4-1681
5310-00-238-7940INTERCHANGEABLE
WASHER,FLAT
BD87
5365-00-790-3690INTERCHANGEABLE
RING,LIGHT
41681
5950-01-028-6689INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
2889406-1
5995-01-063-2242INTERCHANGEABLE
WIRING HARNESS,BRANCHED
6105-01-167-7943INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
3040-01-437-1449INTERCHANGEABLE
EAR,CYLINDER PIPE
41681
5930-01-508-7583INTERCHANGEABLE
SWITCH,PUSH-PULL
41-681

Frequently Asked Questions

What is NSN 3020-00-050-6844?

NSN 3020-00-050-6844 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 3020-00-050-6844?

NSN 3020-00-050-6844 has 2 cross-referenced part numbers: 1770740 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 41-681 (Lockheed Martin Corporation Div Rms - Mitchel Field).

What NSN replaces 3020-00-050-6844?

There are 8 known substitutes for 3020-00-050-6844: 5950-00-222-7749, 5310-00-238-7940, 5365-00-790-3690 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1770740?

Key specifications for 1770740: Body Style: PLAIN, SOLID; Precision Classification: QUALITY NUMBER 10 OR QUALITY NUMBER 11; Pressure Angle: 20.0000 DEGREES; Hub Nominal Diameter: 0.375 INCHES FIRST END IN. 16 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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