PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SMB185062Gear,spur

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 3020-00-640-4534 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-640-4534 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-640-4534. Primary manufacturer part number: SMB185062.
Features
  • Gear,spur — FSC 3020
  • Bore Style: PLAIN BOTH ENDS
  • Hub Nominal Diameter: 0.312 INCHES FIRST END IN
  • Material: ALUMINUM ALLOY 2024 OVERALL
  • Pressure Angle: 20.0000 DEGREES
  • Pitch Diameter: 1.7812 INCHES NOMINAL IN
  • Nominal Outside Diameter: 1.8124 INCHES IN
  • Hub Style Designator: PLAIN FIRST END
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Aluminum Alloy 2024 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-640-4534, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-640-4534
Primary Part NumberSMB185062
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Bore StylePLAIN BOTH ENDS
Hub Nominal Diameter0.312 INCHES FIRST END IN
MaterialALUMINUM ALLOY 2024 OVERALL
Pressure Angle20.0000 DEGREES
Pitch Diameter1.7812 INCHES NOMINAL IN
Nominal Outside Diameter1.8124 INCHES IN
Hub Style DesignatorPLAIN FIRST END
Tooth FormSTANDARD
Body StylePLAIN, SOLID
Material Document and ClassificationQQ-A-250/4,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorPROTRUDING HUB
Face Nominal Width0.140 INCHES IN
Teeth Quantity114
Nominal Distance Between Body Face and Protruding Hub End0.172 INCHES FIRST END IN
Bore Nominal Diameter0.250 INCHES BOTH ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4810-00-729-58059030806 INTERCHANGEABLE
Valve,solenoid
Us Army Aviation and Missile Command
Cross-Reference Index
Part NumberManufacturer
B15153 Smart Machines, Inc. Dba Barker and Williamson (USA)
B15153 Barker & Williamson (USA)
SMB185062 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
4810-00-729-5805INTERCHANGEABLE
VALVE,SOLENOID
9030806

Frequently Asked Questions

What is NSN 3020-00-640-4534?

NSN 3020-00-640-4534 is a Gear,spur, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-640-4534?

NSN 3020-00-640-4534 has 3 cross-referenced part numbers: B15153 (Smart Machines, Inc. Dba Barker and Williamson), B15153 (Barker & Williamson), SMB185062 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 3020-00-640-4534?

There is 1 known substitute for 3020-00-640-4534: 4810-00-729-5805. Verify interchangeability with system specifications before substitution.

What are the specifications of SMB185062?

Key specifications for SMB185062: Bore Style: PLAIN BOTH ENDS; Hub Nominal Diameter: 0.312 INCHES FIRST END IN; Material: ALUMINUM ALLOY 2024 OVERALL; Pressure Angle: 20.0000 DEGREES. 16 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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