PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

100435Gear,spur

Astronautics Corporation of America · NSN 3020-00-202-5256 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-202-5256 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-202-5256. Primary manufacturer part number: 100435.
Features
  • Gear,spur — FSC 3020
  • Pitch Diameter: 1.7869 INCHES NOMINAL IN
  • Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN
  • Bolt Hole Circle Nominal Diameter: 1.312 INCHES AXIALLY THROUGH BODY FIRST END IN
  • Style Designator: PROTRUDING HUBS
  • Nominal Distance Between Body Face and Protruding Hub End: 0.031 INCHES SECOND END IN
  • Mounting Hole Type and Quantity: 3 PLAIN AXIALLY THROUGH BODY FIRST END
  • Pressure Angle: 20.0000 DEGREES
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 303SE Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-202-5256, 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 24 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-202-5256
Primary Part Number100435
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAstronautics Corporation of America
StatusACTIVE
Pitch Diameter1.7869 INCHES NOMINAL IN
Bore Nominal Diameter0.250 INCHES BOTH ENDS IN
Bolt Hole Circle Nominal Diameter1.312 INCHES AXIALLY THROUGH BODY FIRST END IN
Style DesignatorPROTRUDING HUBS
Nominal Distance Between Body Face and Protruding Hub End0.031 INCHES SECOND END IN
Mounting Hole Type and Quantity3 PLAIN AXIALLY THROUGH BODY FIRST END
Pressure Angle20.0000 DEGREES
Nominal Overall Length0.830 INCHES IN
Attachment MethodMOUNTING HOLE
Body StyleWEBBED, OFFSET, SOLID
Nominal Outside Diameter1.828 INCHES IN
Hub Style DesignatorPINNED FIRST END
MaterialSTEEL COMP 303SE OVERALL
Material Document and ClassificationMIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Distance Between Body Face and Protruding Hub End0.580 INCHES FIRST END IN
Surface TreatmentPASSIVATE OVERALL
Teeth Quantity115
Hub Nominal Diameter1.629 INCHES SECOND END IN
Hub Style DesignatorPLAIN SECOND END
Face Nominal Width0.250 INCHES IN
Tooth FormSTANDARD
Precision ClassificationQUALITY NUMBER 9
Mounting Hole Nominal Diameter0.120 INCHES AXIALLY THROUGH BODY FIRST END IN
Bore StylePLAIN BOTH ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2590-01-506-1993100435 INTERCHANGEABLE
Reel,cable
Paccar Winch Inc Dba Paccar Winch Division
5342-01-513-4801100435 INTERCHANGEABLE
Anode,corrosion Preventive
American Metal Bearing Co Dba Amb Engineering & Machining Solutions
6525-01-548-6026100407 INTERCHANGEABLE
Reader System,computed Radiograp
Phillips Medical Systems North America Co
6530-01-555-7490100435 INTERCHANGEABLE
Pad,head,traction System
Hospeq, Inc. Dba Hospeq Inc
Cross-Reference Index
Part NumberManufacturer
100435 PRIMARY Astronautics Corporation of America (USA)
Related Parts
2590-01-506-1993INTERCHANGEABLE
REEL,CABLE
100435
5342-01-513-4801INTERCHANGEABLE
ANODE,CORROSION PREVENTIVE
100435
6525-01-548-6026INTERCHANGEABLE
READER SYSTEM,COMPUTED RADIOGRAP
100407
6530-01-555-7490INTERCHANGEABLE
PAD,HEAD,TRACTION SYSTEM
100435

Frequently Asked Questions

What is NSN 3020-00-202-5256?

NSN 3020-00-202-5256 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 3020-00-202-5256?

NSN 3020-00-202-5256 has 1 cross-referenced part number: 100435 (Astronautics Corporation of America).

What NSN replaces 3020-00-202-5256?

There are 4 known substitutes for 3020-00-202-5256: 2590-01-506-1993, 5342-01-513-4801, 6525-01-548-6026 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 100435?

Key specifications for 100435: Pitch Diameter: 1.7869 INCHES NOMINAL IN; Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Bolt Hole Circle Nominal Diameter: 1.312 INCHES AXIALLY THROUGH BODY FIRST END IN; Style Designator: PROTRUDING HUBS. 24 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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