PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G3-27ESS90Gear,spur

Roller Bearing Co of America, Inc Div Pic Design · NSN 3020-00-845-6238 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-845-6238 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-845-6238. Primary manufacturer part number: G3-27ESS90.
Features
  • Gear,spur — FSC 3020
  • Nominal Outside Diameter: 0.604 INCHES IN
  • Hub Style Designator: PINNED FIRST END
  • Hub Nominal Diameter: 0.500 INCHES FIRST END IN
  • Bore Nominal Diameter: 0.249 INCHES BOTH ENDS IN
  • Face Nominal Width: 0.125 INCHES IN
  • Style Designator: PROTRUDING HUB
  • Bore Style: PLAIN BOTH ENDS
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-845-6238, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-845-6238
Primary Part NumberG3-27ESS90
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerRoller Bearing Co of America, Inc Div Pic Design
StatusCANCELLED
Nominal Outside Diameter0.604 INCHES IN
Hub Style DesignatorPINNED FIRST END
Hub Nominal Diameter0.500 INCHES FIRST END IN
Bore Nominal Diameter0.249 INCHES BOTH ENDS IN
Face Nominal Width0.125 INCHES IN
Style DesignatorPROTRUDING HUB
Bore StylePLAIN BOTH ENDS
MaterialSTEEL CORROSION RESISTING OVERALL
Nominal Distance Between Body Face and Protruding Hub End0.250 INCHES FIRST END IN
Pressure Angle20.0000 DEGREES
Teeth Quantity27
Hardness Rating75.0 ROCKWELL B MINIMUM AND 83.0 ROCKWELL B MAXIMUM OVERALL
Surface TreatmentPASSIVATE OVERALL
Tooth FormSTANDARD
Pitch Diameter0.5620 INCHES NOMINAL IN
Body StylePLAIN, SOLID
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
9540-00-007-0388 INTERCHANGEABLE
Angle,structural
5220-00-213-0186 INTERCHANGEABLE
Gage,seat
3455-00-228-529715427 INTERCHANGEABLE
Cutter,milling,end
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
5910-00-636-3830 INTERCHANGEABLE
Capacitor,variable,air Dielectri
5920-00-646-4631 INTERCHANGEABLE
Fuse,cartridge
5360-00-834-8877 INTERCHANGEABLE
Spring,helical,extension
5945-00-885-838415427 INTERCHANGEABLE
Relay,solid State
Versitron Inc
5935-01-030-6989 INTERCHANGEABLE
Connector,receptacle,electrical
3040-01-050-1834A2-43 INTERCHANGEABLE
Shaft,straight
Roller Bearing Co of America, Inc Div Pic Design
4820-01-145-179615-427 INTERCHANGEABLE
Disk,valve
Rix Industries
Cross-Reference Index
Part NumberManufacturer
84000286 Ncr Corporation Dba Ncr (USA)
G3-27Q10 Roller Bearing Co of America, Inc Div Pic Design (USA)
154-27 Southern Gear & Machine Inc (USA)
84000286 Raytheon Company (USA)
G3-27ESS90 PRIMARY Roller Bearing Co of America, Inc Div Pic Design (USA)
G311942-1 American Telephone and Telegraph Co (USA)
G3-27 Roller Bearing Co of America, Inc Div Pic Design (USA)
Related Parts
9540-00-007-0388INTERCHANGEABLE
ANGLE,STRUCTURAL
5220-00-213-0186INTERCHANGEABLE
GAGE,SEAT
3455-00-228-5297INTERCHANGEABLE
CUTTER,MILLING,END
15427
5910-00-636-3830INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
5920-00-646-4631INTERCHANGEABLE
FUSE,CARTRIDGE
5360-00-834-8877INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
5945-00-885-8384INTERCHANGEABLE
RELAY,SOLID STATE
15427
5935-01-030-6989INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
3040-01-050-1834INTERCHANGEABLE
SHAFT,STRAIGHT
A2-43
4820-01-145-1796INTERCHANGEABLE
DISK,VALVE
15-427
6640-01-205-2423INTERCHANGEABLE
CENTRIFUGE,LABORATORY
G-327
6515-01-492-1115INTERCHANGEABLE
STAPLE UNIT,SURGICAL
15427L

Frequently Asked Questions

What is NSN 3020-00-845-6238?

NSN 3020-00-845-6238 is a Gear,spur, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-845-6238?

NSN 3020-00-845-6238 has 7 cross-referenced part numbers: 84000286 (Ncr Corporation Dba Ncr), G3-27Q10 (Roller Bearing Co of America, Inc Div Pic Design), 154-27 (Southern Gear & Machine Inc), 84000286 (Raytheon Company), G3-27ESS90 (Roller Bearing Co of America, Inc Div Pic Design) and 2 more.

What NSN replaces 3020-00-845-6238?

There are 12 known substitutes for 3020-00-845-6238: 9540-00-007-0388, 5220-00-213-0186, 3455-00-228-5297 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of G3-27ESS90?

Key specifications for G3-27ESS90: Nominal Outside Diameter: 0.604 INCHES IN; Hub Style Designator: PINNED FIRST END; Hub Nominal Diameter: 0.500 INCHES FIRST END IN; Bore Nominal Diameter: 0.249 INCHES BOTH ENDS IN. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-845-6238 still in active supply?

NSN 3020-00-845-6238 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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