PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A1119Gear,worm Wheel

Niantic Tool, Inc. Dba Niantic Tool Co · NSN 3020-00-690-0637 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-690-0637 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-690-0637. Primary manufacturer part number: A1119.
Features
  • Gear,worm Wheel — FSC 3020
  • Pressure Angle: 20.0000 DEGREES
  • Bore Nominal Diameter: 0.469 INCHES BOTH ENDS IN
  • Pitch Diameter: 1.2500 INCHES NOMINAL IN
  • Hub Nominal Diameter: 0.609 INCHES FIRST END IN
  • Bore Style: PLAIN BOTH ENDS
  • Tooth Direction: RIGHT
  • Mating Thread Lead Quantity: 4
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Copper Alloy Overall construction
General Description

The Gear,worm Wheel, cataloged under National Stock Number 3020-00-690-0637, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Niantic Tool, Inc. Dba Niantic Tool Co. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 6 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
NSN3020-00-690-0637
Primary Part NumberA1119
Item NameGear,worm Wheel
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerNiantic Tool, Inc. Dba Niantic Tool Co
StatusCANCELLED
Pressure Angle20.0000 DEGREES
Bore Nominal Diameter0.469 INCHES BOTH ENDS IN
Pitch Diameter1.2500 INCHES NOMINAL IN
Hub Nominal Diameter0.609 INCHES FIRST END IN
Bore StylePLAIN BOTH ENDS
Tooth DirectionRIGHT
Mating Thread Lead Quantity4
Throat Nominal Radius0.313 INCHES IN
Nominal Distance Between Body Face and Protruding Hub End0.313 INCHES FIRST END IN
MaterialCOPPER ALLOY OVERALL
Teeth Quantity20
Nominal Outside Diameter1.420 INCHES IN
Style DesignatorPROTRUDING HUB
Helix Angle21.7998 DEGREES
Body StylePLAIN, SOLID
Hub Style DesignatorPLAIN FIRST END
Face Nominal Width0.312 INCHES IN
Face TypeCONCAVE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5340-00-151-704290-005-1 INTERCHANGEABLE
Catch,flush
Hartwell Corporation
5950-00-227-8737300043 INTERCHANGEABLE
Transformer,power
Astronics Test Systems Inc
4320-00-398-783110447 INTERCHANGEABLE
Ring,wearing
Rps-Fl, Inc. Dba Rps Inc
1660-00-487-030436437-00 INTERCHANGEABLE
Filter-Inlet---Appl
Avox Systems Inc Dba Avox Systems Inc
1420-00-629-2456300043 INTERCHANGEABLE
Ball,brake Adjustme
Michigan Dynamics Inc
5930-00-695-4153900051 INTERCHANGEABLE
Switch,rotary
Naval Ship Systems Command
4730-00-839-51203000-43 INTERCHANGEABLE
Coupling Half,quick Disconnect
Tuthill Corp Hansen Coupling Div
5950-00-888-5333 INTERCHANGEABLE
Suppressor
5120-00-940-095690005-1 INTERCHANGEABLE
Crimping Tool,terminal,hand
Te Connectivity Corporation
5945-01-026-2544W118DIP-8 INTERCHANGEABLE
Relay,reed
Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft)
Cross-Reference Index
Part NumberManufacturer
A1119 PRIMARY Niantic Tool, Inc. Dba Niantic Tool Co (USA)
Q1342 Altra Industrial Motion Corp. (USA)
345015 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
345015 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
ND6282BPC412 Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
NA-69171 Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
300043 PRIMARY Niantic Tool, Inc. Dba Niantic Tool Co (USA)
NA-69171 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
345015 Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
F-8278 PC1G Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
ND6282BPC412 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
NA-69171 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
412NF6095 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
900051 Lee Evans, Inc. (USA)
ND6282BPC412 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
Related Parts
5340-00-151-7042INTERCHANGEABLE
CATCH,FLUSH
90-005-1
5950-00-227-8737INTERCHANGEABLE
TRANSFORMER,POWER
300043
4320-00-398-7831INTERCHANGEABLE
RING,WEARING
10447
1660-00-487-0304INTERCHANGEABLE
FILTER-INLET---APPL
36437-00
1420-00-629-2456INTERCHANGEABLE
BALL,BRAKE ADJUSTME
300043
5930-00-695-4153INTERCHANGEABLE
SWITCH,ROTARY
900051
4730-00-839-5120INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
3000-43
5950-00-888-5333INTERCHANGEABLE
SUPPRESSOR
5120-00-940-0956INTERCHANGEABLE
CRIMPING TOOL,TERMINAL,HAND
90005-1
5945-01-026-2544INTERCHANGEABLE
RELAY,REED
W118DIP-8
5325-01-047-8063INTERCHANGEABLE
EYELET,METALLIC
L219467-32
4320-01-316-0195INTERCHANGEABLE
MOTOR,HYDRAULIC
M75C-878-BE-0R25-11

Frequently Asked Questions

What is NSN 3020-00-690-0637?

NSN 3020-00-690-0637 is a Gear,worm Wheel, manufactured by Niantic Tool, Inc. Dba Niantic Tool Co, classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-690-0637?

NSN 3020-00-690-0637 has 15 cross-referenced part numbers: A1119 (Niantic Tool, Inc. Dba Niantic Tool Co), Q1342 (Altra Industrial Motion Corp.), 345015 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand), 345015 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture), ND6282BPC412 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions) and 10 more.

What NSN replaces 3020-00-690-0637?

There are 12 known substitutes for 3020-00-690-0637: 5340-00-151-7042, 5950-00-227-8737, 4320-00-398-7831 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A1119?

Key specifications for A1119: Pressure Angle: 20.0000 DEGREES; Bore Nominal Diameter: 0.469 INCHES BOTH ENDS IN; Pitch Diameter: 1.2500 INCHES NOMINAL IN; Hub Nominal Diameter: 0.609 INCHES FIRST END IN. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-690-0637 still in active supply?

NSN 3020-00-690-0637 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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