PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M12743Gear,worm

Itw Food Equipment Group Llc Dba Hobart Service · NSN 3020-00-389-5122 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-389-5122 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-389-5122. Primary manufacturer part number: M12743.
Features
  • Gear,worm — FSC 3020
  • Style Designator: HUBLESS
  • Face Nominal Width: 1.320 INCHES IN
  • Nominal Distance From Bore Center to Keyway Bottom: 0.377 INCHES BOTH ENDS IN
  • Pitch Diameter: 0.9922 INCHES NOMINAL IN
  • Pressure Angle: 14.5000 DEGREES
  • Thread Form Direction: RIGHT-HAND
  • Thread Form Quantity: 5
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear,worm, cataloged under National Stock Number 3020-00-389-5122, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Itw Food Equipment Group Llc Dba Hobart Service. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-389-5122
Primary Part NumberM12743
Item NameGear,worm
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerItw Food Equipment Group Llc Dba Hobart Service
StatusACTIVE
Style DesignatorHUBLESS
Face Nominal Width1.320 INCHES IN
Nominal Distance From Bore Center to Keyway Bottom0.377 INCHES BOTH ENDS IN
Pitch Diameter0.9922 INCHES NOMINAL IN
Pressure Angle14.5000 DEGREES
Thread Form DirectionRIGHT-HAND
Thread Form Quantity5
MaterialSTEEL OVERALL
Nominal Outside Diameter1.135 INCHES IN
Keyway Nominal Width0.125 INCHES BOTH ENDS IN
Bore StyleW/ KEYWAY BOTH ENDS
Bore Nominal Diameter0.627 INCHES BOTH ENDS IN
Face TypeCONCAVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
1730-00-232-968612876 INTERCHANGEABLE
Link Assembly,pivot
Time Manufacturing Company Dba Time Manufacturing Company
5360-00-576-026112876 INTERCHANGEABLE
Spring,helical,compression
Moog Inc
5950-00-754-996112876 INTERCHANGEABLE
Saturable Reactor
Standard Industries
5930-00-767-108812-0876-00 INTERCHANGEABLE
Switch,sensitive
Scotsman Industries Inc Div Scotsman Ice Systems
1560-00-793-676412876 INTERCHANGEABLE
Plate,venturi Insta
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
2610-01-214-1344152-705-961 INTERCHANGEABLE
Tire,pneumatic,vehicular
Goodyear Tire & Rubber Company, the Dba Goodyear Div Ground Vehicle Tires
9905-01-367-200112876 INTERCHANGEABLE
Plate,instruction
DP Manufacturing Inc.
Cross-Reference Index
Part NumberManufacturer
M12743 PRIMARY Itw Food Equipment Group Llc Dba Hobart Service (USA)
12876 Itw Food Equipment Group Llc Dba Hobart Service (USA)
1769XDMPC13 Itw Food Equipment Group Llc Dba Hobart Service (USA)
Related Parts
1730-00-232-9686INTERCHANGEABLE
LINK ASSEMBLY,PIVOT
12876
5360-00-576-0261INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
12876
5950-00-754-9961INTERCHANGEABLE
SATURABLE REACTOR
12876
5930-00-767-1088INTERCHANGEABLE
SWITCH,SENSITIVE
12-0876-00
1560-00-793-6764INTERCHANGEABLE
PLATE,VENTURI INSTA
12876
2610-01-214-1344INTERCHANGEABLE
TIRE,PNEUMATIC,VEHICULAR
152-705-961
9905-01-367-2001INTERCHANGEABLE
PLATE,INSTRUCTION
12876

Frequently Asked Questions

What is NSN 3020-00-389-5122?

NSN 3020-00-389-5122 is a Gear,worm, manufactured by Itw Food Equipment Group Llc Dba Hobart Service, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-389-5122?

NSN 3020-00-389-5122 has 3 cross-referenced part numbers: M12743 (Itw Food Equipment Group Llc Dba Hobart Service), 12876 (Itw Food Equipment Group Llc Dba Hobart Service), 1769XDMPC13 (Itw Food Equipment Group Llc Dba Hobart Service).

What NSN replaces 3020-00-389-5122?

There are 7 known substitutes for 3020-00-389-5122: 1730-00-232-9686, 5360-00-576-0261, 5950-00-754-9961 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M12743?

Key specifications for M12743: Style Designator: HUBLESS; Face Nominal Width: 1.320 INCHES IN; Nominal Distance From Bore Center to Keyway Bottom: 0.377 INCHES BOTH ENDS IN; Pitch Diameter: 0.9922 INCHES NOMINAL IN. 13 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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