PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

117811Gear,spur

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 3020-01-050-9375 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-050-9375 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-050-9375. Primary manufacturer part number: 117811.
Features
  • Gear,spur — FSC 3020
  • Bore Nominal Diameter: 0.875 INCHES BOTH ENDS IN
  • Nominal Distance From Bore Center to Keyway Bottom: 0.522 INCHES BOTH ENDS IN
  • Nominal Distance Between Body Face and Protruding Hub End: 0.250 INCHES FIRST END IN
  • Style Designator: ONE PROTRUDING HUB, ONE FLUSH HUB
  • Nominal Outside Diameter: 2.936 INCHES IN
  • Pressure Angle: 20.0000 DEGREES
  • Material: STEEL COMP 4620 OVERALL
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 4620 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-01-050-9375, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-01-050-9375
Primary Part Number117811
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Bore Nominal Diameter0.875 INCHES BOTH ENDS IN
Nominal Distance From Bore Center to Keyway Bottom0.522 INCHES BOTH ENDS IN
Nominal Distance Between Body Face and Protruding Hub End0.250 INCHES FIRST END IN
Style DesignatorONE PROTRUDING HUB, ONE FLUSH HUB
Nominal Outside Diameter2.936 INCHES IN
Pressure Angle20.0000 DEGREES
MaterialSTEEL COMP 4620 OVERALL
Precision ClassificationQUALITY NUMBER 9
Face Nominal Width0.750 INCHES IN
Material Document and ClassificationMIL-S-7493,COMP 4620 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Tooth FormSTANDARD
Backlash DesignationGRADE C
Keyway Nominal Width0.186 INCHES BOTH ENDS IN
Hub Nominal Diameter1.625 INCHES FIRST END IN
Nominal Overall Length1.000 INCHES IN
Teeth Quantity45
Hub Style DesignatorPLAIN BOTH ENDS
Pitch Diameter2.8125 INCHES NOMINAL IN
Body StyleWEBBED, SOLID
Hub Nominal Diameter1.625 INCHES SECOND END IN
Bore StyleW/ KEYWAY BOTH ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6520-00-523-2550 INTERCHANGEABLE
Disk,abrasive
5820-00-918-3746117811 INTERCHANGEABLE
Support,radio Receiver
The Boeing Company Div Defense
2990-01-214-745957-2121-2059 INTERCHANGEABLE
Control Assembly,push-Pull
Empigard Corp
Cross-Reference Index
Part NumberManufacturer
117811 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
6520-00-523-2550INTERCHANGEABLE
DISK,ABRASIVE
5820-00-918-3746INTERCHANGEABLE
SUPPORT,RADIO RECEIVER
117811
2990-01-214-7459INTERCHANGEABLE
CONTROL ASSEMBLY,PUSH-PULL
57-2121-2059

Frequently Asked Questions

What is NSN 3020-01-050-9375?

NSN 3020-01-050-9375 is a Gear,spur, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-050-9375?

NSN 3020-01-050-9375 has 1 cross-referenced part number: 117811 (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 3020-01-050-9375?

There are 3 known substitutes for 3020-01-050-9375: 6520-00-523-2550, 5820-00-918-3746, 2990-01-214-7459. Verify interchangeability with system specifications before substitution.

What are the specifications of 117811?

Key specifications for 117811: Bore Nominal Diameter: 0.875 INCHES BOTH ENDS IN; Nominal Distance From Bore Center to Keyway Bottom: 0.522 INCHES BOTH ENDS IN; Nominal Distance Between Body Face and Protruding Hub End: 0.250 INCHES FIRST END IN; Style Designator: ONE PROTRUDING HUB, ONE FLUSH HUB. 21 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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