PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

104636Gear,spur

Astronautics Corporation of America · NSN 3020-00-042-8459 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-042-8459 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-042-8459. Primary manufacturer part number: 104636.
Features
  • Gear,spur — FSC 3020
  • Teeth Quantity: 54
  • Pitch Diameter: 0.4490 INCHES MINIMUM AND 0.4500 INCHES MAXIMUM IN
  • Style Designator: PROTRUDING HUB
  • First Step Nominal Length: 0.132 INCHES FIRST END IN
  • Attachment Method: MOUNTING HOLE
  • Body Style: PLAIN, SOLID
  • Hub Style Designator: 1 STEP FIRST END
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 303 and Steel Comp 303SE Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-042-8459, 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 22 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
NSN3020-00-042-8459
Primary Part Number104636
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAstronautics Corporation of America
StatusACTIVE
Teeth Quantity54
Pitch Diameter0.4490 INCHES MINIMUM AND 0.4500 INCHES MAXIMUM IN
Style DesignatorPROTRUDING HUB
First Step Nominal Length0.132 INCHES FIRST END IN
Attachment MethodMOUNTING HOLE
Body StylePLAIN, SOLID
Hub Style Designator1 STEP FIRST END
First Step Nominal Diameter0.350 INCHES FIRST END IN
End Nominal Length0.010 INCHES FIRST END IN
Nominal Outside Diameter0.465 INCHES IN
Bore Nominal Diameter0.125 INCHES BOTH ENDS IN
Mounting Hole Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END
Pressure Angle20.0000 DEGREES
Surface TreatmentPASSIVATE OVERALL
End Nominal Diameter0.160 INCHES FIRST END IN
Bore StylePLAIN BOTH ENDS
Face Nominal Width0.038 INCHES IN
MaterialSTEEL COMP 303 AND STEEL COMP 303SE OVERALL
Nominal Distance Between Body Face and Protruding Hub End0.142 INCHES FIRST END IN
Material Document and ClassificationQQ-S-764,TYPE 303,COND A FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-764,TYPE 303SE,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Mounting Hole Nominal Thread Size0.086 INCHES TRANSVERSELY THROUGH HUB FIRST END IN
Mounting Hole Type and Quantity2 THREADED TRANSVERSELY THROUGH HUB FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3110-00-100-6176104916 INTERCHANGEABLE
Ball,bearing
Us Army Aviation and Missile Command
4820-01-181-576495-38-34 INTERCHANGEABLE
Valve,safety Relief
Market Forge Industries Inc
3120-01-305-9564104636 INTERCHANGEABLE
Roller,linear-Rotary Motion
Williams Controls Inc
5340-01-555-5614104636 INTERCHANGEABLE
Plate,frt Mid Fende
Oshkosh Defense Llc
Cross-Reference Index
Part NumberManufacturer
104636 PRIMARY Astronautics Corporation of America (USA)
Related Parts
3110-00-100-6176INTERCHANGEABLE
BALL,BEARING
104916
4820-01-181-5764INTERCHANGEABLE
VALVE,SAFETY RELIEF
95-38-34
3120-01-305-9564INTERCHANGEABLE
ROLLER,LINEAR-ROTARY MOTION
104636
5340-01-555-5614INTERCHANGEABLE
PLATE,FRT MID FENDE
104636

Frequently Asked Questions

What is NSN 3020-00-042-8459?

NSN 3020-00-042-8459 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 3020-00-042-8459?

NSN 3020-00-042-8459 has 1 cross-referenced part number: 104636 (Astronautics Corporation of America).

What NSN replaces 3020-00-042-8459?

There are 4 known substitutes for 3020-00-042-8459: 3110-00-100-6176, 4820-01-181-5764, 3120-01-305-9564 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 104636?

Key specifications for 104636: Teeth Quantity: 54; Pitch Diameter: 0.4490 INCHES MINIMUM AND 0.4500 INCHES MAXIMUM IN; Style Designator: PROTRUDING HUB; First Step Nominal Length: 0.132 INCHES FIRST END IN. 22 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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