PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H1-70Gear,spur

Roller Bearing Co of America, Inc Div Pic Design · NSN 3020-01-191-6678 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-191-6678 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-191-6678. Primary manufacturer part number: H1-70.
Features
  • Gear,spur — FSC 3020
  • Face Nominal Width: 0.125 INCHES IN
  • Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN
  • Style Designator: PROTRUDING HUB
  • Clamping Surface Nominal Length: 0.250 INCHES FIRST END IN
  • Hub Nominal Diameter: 0.312 INCHES FIRST END IN
  • Pitch Diameter: 1.4583 INCHES NOMINAL IN
  • Attachment Method: CLAMP
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 3020-01-191-6678, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-01-191-6678
Primary Part NumberH1-70
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerRoller Bearing Co of America, Inc Div Pic Design
StatusACTIVE
Face Nominal Width0.125 INCHES IN
Bore Nominal Diameter0.250 INCHES BOTH ENDS IN
Style DesignatorPROTRUDING HUB
Clamping Surface Nominal Length0.250 INCHES FIRST END IN
Hub Nominal Diameter0.312 INCHES FIRST END IN
Pitch Diameter1.4583 INCHES NOMINAL IN
Attachment MethodCLAMP
Surface TreatmentPASSIVATE OVERALL
Pressure Angle20.0000 DEGREES
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Teeth Quantity70
Nominal Distance Between Body Face and Protruding Hub End0.250 INCHES FIRST END IN
Body StylePLAIN, SOLID
Nominal Outside Diameter1.500 INCHES IN
MaterialSTEEL CORROSION RESISTING OVERALL
Bore StylePLAIN BOTH ENDS
Hub Style DesignatorSPLIT FIRST END
Tooth FormSTANDARD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4320-00-308-6747G10194PC94 INTERCHANGEABLE
Adapter Assembly with Zerk Fitti
Siemens Energy, Inc.
4520-00-360-1945H170 INTERCHANGEABLE
Boiler,heating,low Pressure
Way Wolff Associates Inc
5950-01-087-0810 INTERCHANGEABLE
Reactor
5962-01-272-4311H-17-1 INTERCHANGEABLE
Microcircuit,digital
L3 Technologies, Inc.
5340-01-658-4157 INTERCHANGEABLE
Grille,metal
Cross-Reference Index
Part NumberManufacturer
H1-70 PRIMARY Roller Bearing Co of America, Inc Div Pic Design (USA)
412763 Raytheon Company Dba Raytheon (USA)
R21-70 PRIMARY Designatronics Incorporated Div Sterling Instruments Div (USA)
412763-27 Raytheon Company Dba Raytheon (USA)
GC14-70 PRIMARY Secs Inc (USA)
Related Parts
4320-00-308-6747INTERCHANGEABLE
ADAPTER ASSEMBLY WITH ZERK FITTI
G10194PC94
4520-00-360-1945INTERCHANGEABLE
BOILER,HEATING,LOW PRESSURE
H170
5950-01-087-0810INTERCHANGEABLE
REACTOR
5962-01-272-4311INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
H-17-1
5340-01-658-4157INTERCHANGEABLE
GRILLE,METAL

Frequently Asked Questions

What is NSN 3020-01-191-6678?

NSN 3020-01-191-6678 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 3020-01-191-6678?

NSN 3020-01-191-6678 has 5 cross-referenced part numbers: H1-70 (Roller Bearing Co of America, Inc Div Pic Design), 412763 (Raytheon Company Dba Raytheon), R21-70 (Designatronics Incorporated Div Sterling Instruments Div), 412763-27 (Raytheon Company Dba Raytheon), GC14-70 (Secs Inc).

What NSN replaces 3020-01-191-6678?

There are 5 known substitutes for 3020-01-191-6678: 4320-00-308-6747, 4520-00-360-1945, 5950-01-087-0810 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of H1-70?

Key specifications for H1-70: Face Nominal Width: 0.125 INCHES IN; Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Style Designator: PROTRUDING HUB; Clamping Surface Nominal Length: 0.250 INCHES FIRST END IN. 18 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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