PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

103545Gear,antibacklash,spur

Astronautics Corporation of America · NSN 3020-00-014-5803 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-014-5803 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-014-5803. Primary manufacturer part number: 103545.
Features
  • Gear,antibacklash,spur — FSC 3020
  • Nominal Outside Diameter: 0.6910 INCHES IN
  • Teeth Quantity: 81
  • Surface Treatment: PASSIVATE OVERALL
  • End Nominal Length: 0.062 INCHES FIRST END IN
  • First Step Nominal Diameter: 0.125 INCHES FIRST END IN
  • End Nominal Diameter: 0.093 INCHES FIRST END IN
  • Hub Style Designator: 2 STEPS FIRST END
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 303s Overall construction
General Description

The Gear,antibacklash,spur, cataloged under National Stock Number 3020-00-014-5803, 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 19 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-014-5803
Primary Part Number103545
Item NameGear,antibacklash,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAstronautics Corporation of America
StatusACTIVE
Nominal Outside Diameter0.6910 INCHES IN
Teeth Quantity81
Surface TreatmentPASSIVATE OVERALL
End Nominal Length0.062 INCHES FIRST END IN
First Step Nominal Diameter0.125 INCHES FIRST END IN
End Nominal Diameter0.093 INCHES FIRST END IN
Hub Style Designator2 STEPS FIRST END
Style DesignatorPROTRUDING HUB
Precision ClassificationQUALITY NUMBER 10
Second Step Nominal Length0.395 INCHES FIRST END IN
Pressure Angle20.0000 DEGREES
Nominal Distance Between Body Face and Protruding Hub End0.482 INCHES FIRST END IN
First Step Nominal Length0.020 INCHES FIRST END IN
Second Step Nominal Diameter0.187 INCHES FIRST END IN
Face Nominal Width0.141 INCHES IN
MaterialSTEEL COMP 303S OVERALL
Material Document and ClassificationMIL-S-7720,COMP 303S MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Pitch Diameter0.6750 INCHES NOMINAL IN
Tooth FormSTANDARD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2920-00-588-4139103545 INTERCHANGEABLE
Contact Set,distributor
Allianz Sweeper Company
5930-00-906-0699103545 INTERCHANGEABLE
Switch,sensitive
General Dynamics Land Systems - Canadacorporation Div General Dynamics Mission Systems
Cross-Reference Index
Part NumberManufacturer
103545 PRIMARY Astronautics Corporation of America (USA)
Related Parts
2920-00-588-4139INTERCHANGEABLE
CONTACT SET,DISTRIBUTOR
103545
5930-00-906-0699INTERCHANGEABLE
SWITCH,SENSITIVE
103545

Frequently Asked Questions

What is NSN 3020-00-014-5803?

NSN 3020-00-014-5803 is a Gear,antibacklash,spur, manufactured by Astronautics Corporation of America, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-014-5803?

NSN 3020-00-014-5803 has 1 cross-referenced part number: 103545 (Astronautics Corporation of America).

What NSN replaces 3020-00-014-5803?

There are 2 known substitutes for 3020-00-014-5803: 2920-00-588-4139, 5930-00-906-0699. Verify interchangeability with system specifications before substitution.

What are the specifications of 103545?

Key specifications for 103545: Nominal Outside Diameter: 0.6910 INCHES IN; Teeth Quantity: 81; Surface Treatment: PASSIVATE OVERALL; End Nominal Length: 0.062 INCHES FIRST END IN. 19 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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