PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

100720Gear,spur

Astronautics Corporation of America · NSN 3020-00-015-4354 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-015-4354 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-015-4354. Primary manufacturer part number: 100720.
Features
  • Gear,spur — FSC 3020
  • Teeth Quantity: 100
  • Mounting Hole Nominal Diameter: 0.060 INCHES AXIALLY THROUGH FLANGE IN
  • Flange Nominal Diameter: 2.600 INCHES IN
  • Pressure Angle: 20.0000 DEGREES
  • Surface Treatment Document and Classification: MIL-STD-171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL
  • Nominal Outside Diameter: 2.123 INCHES IN
  • Surface Treatment: PASSIVATE OVERALL
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-015-4354, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Astronautics Corporation of America. Government technical data includes 23 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
NSN3020-00-015-4354
Primary Part Number100720
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAstronautics Corporation of America
StatusACTIVE
Teeth Quantity100
Mounting Hole Nominal Diameter0.060 INCHES AXIALLY THROUGH FLANGE IN
Flange Nominal Diameter2.600 INCHES IN
Pressure Angle20.0000 DEGREES
Surface Treatment Document and ClassificationMIL-STD-171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL
Nominal Outside Diameter2.123 INCHES IN
Surface TreatmentPASSIVATE OVERALL
Nominal Distance Between Outer Body Face and Inner Flange Face0.843 INCHES IN
Tooth FormSTANDARD
Face Nominal Width0.125 INCHES IN
MaterialSTEEL COMP 303 OVERALL
Flange Nominal Thickness0.250 INCHES IN
Bore Nominal Diameter1.904 INCHES COUNTERBORE FIRST END IN
Counterbore Nominal Depth0.220 INCHES COUNTERBORE FIRST END IN
Material Document and ClassificationMIL-S-7720,COMP 303,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorFLANGED END
Mounting Hole Type and Quantity3 PLAIN AXIALLY THROUGH FLANGE
Bolt Hole Circle Nominal Diameter2.480 INCHES AXIALLY THROUGH FLANGE IN
Counterbore Nominal Diameter2.043 INCHES COUNTERBORE FIRST END IN
Bore StyleW/COUNTERBORE COUNTERBORE FIRST END
Pitch Diameter2.0835 INCHES NOMINAL IN
Body StylePLAIN, SOLID
Attachment MethodMOUNTING HOLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4820-00-482-58081007-20 INTERCHANGEABLE
Sensor Assembly,valve Regulator
Tescom Corp Dba Tescom Div Tescom
5930-00-755-4006100-720 INTERCHANGEABLE
Switch,rotary
Ametek Inc Schutte and Koerting Div
4130-01-142-1959100720 INTERCHANGEABLE
Act Plate
Walker Power Systems, Inc. Dba Tiernay Turbines
5950-01-181-6635989110-7B INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
5995-01-442-2372100-720-PL INTERCHANGEABLE
Cable Assembly,special Purpose,e
Santa Barbara Infrared, Inc. Dba Santa Barbara Infrared Inc
5342-01-513-5436100720 INTERCHANGEABLE
Cap,filler Opening
Cub Crafters, Inc.
6685-01-528-18311007-20 INTERCHANGEABLE
Gage,pressure,dial Indicating
Florida Aeronautics, Inc Dba Florida Aeronautics, Inc
Cross-Reference Index
Part NumberManufacturer
100720 PRIMARY Astronautics Corporation of America (USA)
Related Parts
4820-00-482-5808INTERCHANGEABLE
SENSOR ASSEMBLY,VALVE REGULATOR
1007-20
5930-00-755-4006INTERCHANGEABLE
SWITCH,ROTARY
100-720
4130-01-142-1959INTERCHANGEABLE
ACT PLATE
100720
5950-01-181-6635INTERCHANGEABLE
COIL,RADIO FREQUENCY
989110-7B
5995-01-442-2372INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
100-720-PL
5342-01-513-5436INTERCHANGEABLE
CAP,FILLER OPENING
100720
6685-01-528-1831INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
1007-20

Frequently Asked Questions

What is NSN 3020-00-015-4354?

NSN 3020-00-015-4354 is a Gear,spur, manufactured by Astronautics Corporation of America, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-015-4354?

NSN 3020-00-015-4354 has 1 cross-referenced part number: 100720 (Astronautics Corporation of America).

What NSN replaces 3020-00-015-4354?

There are 7 known substitutes for 3020-00-015-4354: 4820-00-482-5808, 5930-00-755-4006, 4130-01-142-1959 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 100720?

Key specifications for 100720: Teeth Quantity: 100; Mounting Hole Nominal Diameter: 0.060 INCHES AXIALLY THROUGH FLANGE IN; Flange Nominal Diameter: 2.600 INCHES IN; Pressure Angle: 20.0000 DEGREES. 23 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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