PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

102635Gear,spur

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 3020-00-971-5609 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-971-5609 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-971-5609. Primary manufacturer part number: 102635.
Features
  • Gear,spur — FSC 3020
  • Body Style: PLAIN, SOLID
  • Hub Style Designator: 3 STEPS FIRST END
  • Spline Quantity: 1 BOTH ENDS
  • Face Nominal Width: 0.313 INCHES IN
  • Third Step Nominal Diameter: 0.690 INCHES FIRST END IN
  • Pressure Angle: 20.0000 DEGREES
  • Teeth Quantity: 23
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 4340 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-971-5609, 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 29 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-971-5609
Primary Part Number102635
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Body StylePLAIN, SOLID
Hub Style Designator3 STEPS FIRST END
Spline Quantity1 BOTH ENDS
Face Nominal Width0.313 INCHES IN
Third Step Nominal Diameter0.690 INCHES FIRST END IN
Pressure Angle20.0000 DEGREES
Teeth Quantity23
First Step Nominal Length0.438 INCHES FIRST END IN
Bore Nominal Diameter0.500 INCHES BOTH ENDS IN
Material Document and ClassificationMIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
End Nominal Diameter0.590 INCHES SECOND END IN
Style DesignatorPROTRUDING HUBS
Bore StyleINVOLUTE SPLINE BOTH ENDS
Pitch Diameter0.9583 INCHES NOMINAL IN
Third Step Nominal Length0.065 INCHES FIRST END IN
First Step Nominal Diameter0.984 INCHES FIRST END IN
First Step Nominal Diameter0.690 INCHES SECOND END IN
MaterialSTEEL COMP 4340 OVERALL
End Nominal Length0.347 INCHES SECOND END IN
Second Step Nominal Length0.065 INCHES FIRST END IN
Nominal Outside Diameter1.040 INCHES IN
Second Step Nominal Diameter1.140 INCHES FIRST END IN
Hub Style Designator1 STEP SECOND END
Nominal Distance Between Body Face and Protruding Hub End1.235 INCHES FIRST END IN
Nominal Distance Between Body Face and Protruding Hub End0.483 INCHES SECOND END IN
First Step Nominal Length0.136 INCHES SECOND END IN
End Nominal Length0.672 INCHES FIRST END IN
Tooth FormSTANDARD
End Nominal Diameter0.812 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-00-010-26350120A INTERCHANGEABLE
Nut,plain,hexagon
Harley Davidson Motor Co Inc
3040-00-128-7635102635 INTERCHANGEABLE
Gearshaft,spur
Astronautics Corporation of America
2910-00-325-6566102635 INTERCHANGEABLE
Plunger,spring
Cummins Inc.
5310-00-732-0558 INTERCHANGEABLE
Nut,plain,hexagon
1005-00-934-2492102635 INTERCHANGEABLE
Housing,elevating L
Cadillac Gage Textron Inc.
5865-00-984-197615204-011 INTERCHANGEABLE
Retainer,circuit,ca
Astronautics Corporation of America
5310-01-065-2509 INTERCHANGEABLE
Nut,hexagon
Cross-Reference Index
Part NumberManufacturer
102635 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
5310-00-010-2635INTERCHANGEABLE
NUT,PLAIN,HEXAGON
0120A
3040-00-128-7635INTERCHANGEABLE
GEARSHAFT,SPUR
102635
2910-00-325-6566INTERCHANGEABLE
PLUNGER,SPRING
102635
5310-00-732-0558INTERCHANGEABLE
NUT,PLAIN,HEXAGON
1005-00-934-2492INTERCHANGEABLE
HOUSING,ELEVATING L
102635
5865-00-984-1976INTERCHANGEABLE
RETAINER,CIRCUIT,CA
15204-011
5310-01-065-2509INTERCHANGEABLE
NUT,HEXAGON

Frequently Asked Questions

What is NSN 3020-00-971-5609?

NSN 3020-00-971-5609 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 3020-00-971-5609?

NSN 3020-00-971-5609 has 1 cross-referenced part number: 102635 (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 3020-00-971-5609?

There are 7 known substitutes for 3020-00-971-5609: 5310-00-010-2635, 3040-00-128-7635, 2910-00-325-6566 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 102635?

Key specifications for 102635: Body Style: PLAIN, SOLID; Hub Style Designator: 3 STEPS FIRST END; Special Features: 0.800 IN. LG OF SPLINES IN BORE IN; Spline Quantity: 1 BOTH ENDS. 30 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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