PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

84777Gear,spur

Ge Aviation Systems Llc Dba Ge Aviation · NSN 3020-00-986-0872 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-986-0872 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-986-0872. Primary manufacturer part number: 84777.
Features
  • Gear,spur — FSC 3020
  • Body Style: PLAIN, SOLID
  • Style Designator: PROTRUDING HUB
  • Hub Style Designator: SPLIT FIRST END
  • Pressure Angle: 20.0000 DEGREES
  • Nominal Outside Diameter: 0.875 INCHES IN
  • Attachment Method: CLAMP
  • Pitch Diameter: 0.8437 INCHES NOMINAL IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Aluminum Alloy 2024 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-986-0872, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Ge Aviation Systems Llc Dba Ge Aviation. Government technical data includes 18 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-986-0872
Primary Part Number84777
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerGe Aviation Systems Llc Dba Ge Aviation
StatusACTIVE
Body StylePLAIN, SOLID
Style DesignatorPROTRUDING HUB
Hub Style DesignatorSPLIT FIRST END
Pressure Angle20.0000 DEGREES
Nominal Outside Diameter0.875 INCHES IN
Attachment MethodCLAMP
Pitch Diameter0.8437 INCHES NOMINAL IN
Teeth Quantity54
MaterialALUMINUM ALLOY 2024 OVERALL
Clamping Surface Nominal Length0.141 INCHES FIRST END IN
Hub Nominal Diameter0.187 INCHES FIRST END IN
Face Nominal Width0.031 INCHES IN
Tooth FormSTANDARD
Material Document and ClassificationQQ-A-355 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentANODIZE OVERALL
Bore StylePLAIN BOTH ENDS
Bore Nominal Diameter0.125 INCHES BOTH ENDS IN
Nominal Distance Between Body Face and Protruding Hub End0.141 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5305-00-013-214375817 INTERCHANGEABLE
Screw,machine
Stewart-Warner Corporation
5945-00-248-582786501 INTERCHANGEABLE
Solenoid,electrical
Hydro-Aire Aerospace Corp
Cross-Reference Index
Part NumberManufacturer
84777 PRIMARY Ge Aviation Systems Llc Dba Ge Aviation (USA)
84777 L3harris Interstate Electronics Corporation (USA)
Related Parts
5305-00-013-2143INTERCHANGEABLE
SCREW,MACHINE
75817
5945-00-248-5827INTERCHANGEABLE
SOLENOID,ELECTRICAL
86501

Frequently Asked Questions

What is NSN 3020-00-986-0872?

NSN 3020-00-986-0872 is a Gear,spur, manufactured by Ge Aviation Systems Llc Dba Ge Aviation, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-986-0872?

NSN 3020-00-986-0872 has 2 cross-referenced part numbers: 84777 (Ge Aviation Systems Llc Dba Ge Aviation), 84777 (L3harris Interstate Electronics Corporation).

What NSN replaces 3020-00-986-0872?

There are 2 known substitutes for 3020-00-986-0872: 5305-00-013-2143, 5945-00-248-5827. Verify interchangeability with system specifications before substitution.

What are the specifications of 84777?

Key specifications for 84777: Body Style: PLAIN, SOLID; Style Designator: PROTRUDING HUB; Hub Style Designator: SPLIT FIRST END; Pressure Angle: 20.0000 DEGREES. 18 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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