PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

191-858Gear,spur

Cmc Electronics Inc · NSN 3020-01-407-0735 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-407-0735 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-407-0735. Primary manufacturer part number: 191-858.
Features
  • Gear,spur — FSC 3020
  • Teeth Quantity: 50
  • Nominal Distance Between Body Face and Protruding Hub End: 0.218 INCHES FIRST END IN
  • Bore Nominal Diameter: 0.1873 INCHES BOTH ENDS IN
  • Bore Style: PLAIN BOTH ENDS
  • Nominal Outside Diameter: 0.722 INCHES IN
  • Hub Nominal Diameter: 0.375 INCHES FIRST END IN
  • Pressure Angle: 20.0000 DEGREES
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 3020-01-407-0735, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Cmc Electronics Inc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN3020-01-407-0735
Primary Part Number191-858
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCmc Electronics Inc
StatusACTIVE
Teeth Quantity50
Nominal Distance Between Body Face and Protruding Hub End0.218 INCHES FIRST END IN
Bore Nominal Diameter0.1873 INCHES BOTH ENDS IN
Bore StylePLAIN BOTH ENDS
Nominal Outside Diameter0.722 INCHES IN
Hub Nominal Diameter0.375 INCHES FIRST END IN
Pressure Angle20.0000 DEGREES
Face Nominal Width0.125 INCHES IN
MaterialALUMINUM ALLOY 2024 OVERALL
Material Document and ClassificationQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Tooth FormSTANDARD
Hub Style DesignatorPINNED FIRST END
Style DesignatorPROTRUDING HUB
Precision ClassificationQUALITY NUMBER 10
Pitch Diameter0.6944 INCHES NOMINAL IN
Body StylePLAIN, SOLID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5325-00-020-97081918-5-8 INTERCHANGEABLE
Stud,turnlock Fastener
Howmet Global Fastening Systems Inc Div Torrance Operations
3020-01-407-0740191-775 INTERCHANGEABLE
Gear,spur
Cmc Electronics Inc
Cross-Reference Index
Part NumberManufacturer
191-858 PRIMARY Cmc Electronics Inc (CAN)
SM-C-763801-2 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
SM-C-763801 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
5325-00-020-9708INTERCHANGEABLE
STUD,TURNLOCK FASTENER
1918-5-8
3020-01-407-0740INTERCHANGEABLE
GEAR,SPUR
191-775

Frequently Asked Questions

What is NSN 3020-01-407-0735?

NSN 3020-01-407-0735 is a Gear,spur, manufactured by Cmc Electronics Inc, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-407-0735?

NSN 3020-01-407-0735 has 3 cross-referenced part numbers: 191-858 (Cmc Electronics Inc), SM-C-763801-2 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), SM-C-763801 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 3020-01-407-0735?

There are 2 known substitutes for 3020-01-407-0735: 5325-00-020-9708, 3020-01-407-0740. Verify interchangeability with system specifications before substitution.

What are the specifications of 191-858?

Key specifications for 191-858: Teeth Quantity: 50; Nominal Distance Between Body Face and Protruding Hub End: 0.218 INCHES FIRST END IN; Bore Nominal Diameter: 0.1873 INCHES BOTH ENDS IN; Bore Style: PLAIN BOTH ENDS. 17 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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