PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G41-18Gear,spur

Roller Bearing Co of America, Inc Div Pic Design · NSN 3020-00-814-8706 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-814-8706 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-814-8706. Primary manufacturer part number: G41-18.
Features
  • Gear,spur — FSC 3020
  • Tooth Form: STANDARD
  • Pitch Diameter: 0.7500 INCHES NOMINAL IN
  • Hub Nominal Diameter: 0.500 INCHES FIRST END IN
  • Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN
  • Nominal Outside Diameter: 0.833 INCHES IN
  • Precision Classification: QUALITY NUMBER 10
  • Material: STEEL COMP 303 OR STEEL COMP 303SE OVERALL
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 303 or Steel Comp 303SE Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-814-8706, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Roller Bearing Co of America, Inc Div Pic Design. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, 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
NSN3020-00-814-8706
Primary Part NumberG41-18
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerRoller Bearing Co of America, Inc Div Pic Design
StatusACTIVE
Tooth FormSTANDARD
Pitch Diameter0.7500 INCHES NOMINAL IN
Hub Nominal Diameter0.500 INCHES FIRST END IN
Bore Nominal Diameter0.250 INCHES BOTH ENDS IN
Nominal Outside Diameter0.833 INCHES IN
Precision ClassificationQUALITY NUMBER 10
MaterialSTEEL COMP 303 OR STEEL COMP 303SE OVERALL
Bore StylePLAIN BOTH ENDS
Nominal Distance Between Body Face and Protruding Hub End0.250 INCHES FIRST END IN
Pressure Angle20.0000 DEGREES
Material Document and ClassificationMIL-S-7720,COMP 303S MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-7720,COMP 303SE MIL SPEC 2ND MATERIAL RESPONSE OVERALL
Hardness Rating75.0 ROCKWELL C MINIMUM AND 83.0 ROCKWELL C MAXIMUM OVERALL
Furnished Items and Quantity1 SETSCREW
Face Nominal Width0.187 INCHES IN
Style DesignatorPROTRUDING HUB
Surface TreatmentPASSIVATE OVERALL
Hub Style DesignatorPINNED FIRST END
Teeth Quantity18
Body StylePLAIN, SOLID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5961-00-412-0057 INTERCHANGEABLE
Transistor
5310-00-769-65207696520 INTERCHANGEABLE
Washer,key
U S Army Tank Automotive Command Amsta-Im-Mm
5340-01-160-0447H2818-3S190D INTERCHANGEABLE
Catch,flush
Hartwell Corporation
5325-01-205-9901G41-18 INTERCHANGEABLE
Ring,retaining
Roper Industries Inc Roper Pump Co Div
Cross-Reference Index
Part NumberManufacturer
GP12-18 Secs Inc (USA)
G41-18 PRIMARY Roller Bearing Co of America, Inc Div Pic Design (USA)
H28-18 Designatronics Incorporated Div Sterling Instruments Div (USA)
342C103H59 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
5961-00-412-0057INTERCHANGEABLE
TRANSISTOR
5310-00-769-6520INTERCHANGEABLE
WASHER,KEY
7696520
5340-01-160-0447INTERCHANGEABLE
CATCH,FLUSH
H2818-3S190D
5325-01-205-9901INTERCHANGEABLE
RING,RETAINING
G41-18

Frequently Asked Questions

What is NSN 3020-00-814-8706?

NSN 3020-00-814-8706 is a Gear,spur, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-814-8706?

NSN 3020-00-814-8706 has 4 cross-referenced part numbers: GP12-18 (Secs Inc), G41-18 (Roller Bearing Co of America, Inc Div Pic Design), H28-18 (Designatronics Incorporated Div Sterling Instruments Div), 342C103H59 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 3020-00-814-8706?

There are 4 known substitutes for 3020-00-814-8706: 5961-00-412-0057, 5310-00-769-6520, 5340-01-160-0447 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of G41-18?

Key specifications for G41-18: Tooth Form: STANDARD; Pitch Diameter: 0.7500 INCHES NOMINAL IN; Hub Nominal Diameter: 0.500 INCHES FIRST END IN; Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN. 20 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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