PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1681Gear,spur

L3harris Technologies, Inc. Div Space and Airborne Systems · NSN 3020-00-541-6833 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-541-6833 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-541-6833. Primary manufacturer part number: 1681.
Features
  • Gear,spur — FSC 3020
  • Pitch Diameter: 2.5000 INCHES NOMINAL IN
  • Tooth Form: STANDARD
  • Nominal Distance Between Body Face and Protruding Hub End: 0.1750 INCHES FIRST END IN
  • Hub Style Designator: 1 STEP FIRST END
  • Material Document and Classification: QQ-B-746 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: COPPER ALLOY OVERALL
  • End Nominal Length: 0.0620 INCHES FIRST END IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Copper Alloy Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-541-6833, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is L3harris Technologies, Inc. Div Space and Airborne Systems. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-541-6833
Primary Part Number1681
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerL3harris Technologies, Inc. Div Space and Airborne Systems
StatusACTIVE
Pitch Diameter2.5000 INCHES NOMINAL IN
Tooth FormSTANDARD
Nominal Distance Between Body Face and Protruding Hub End0.1750 INCHES FIRST END IN
Hub Style Designator1 STEP FIRST END
Material Document and ClassificationQQ-B-746 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialCOPPER ALLOY OVERALL
End Nominal Length0.0620 INCHES FIRST END IN
First Step Nominal Diameter0.3750 INCHES FIRST END IN
Teeth Quantity80
First Step Nominal Length0.1105 INCHES FIRST END IN
End Nominal Diameter0.2500 INCHES FIRST END IN
Bore StylePLAIN BOTH ENDS
Pressure Angle20.0000 DEGREES
Body StylePLAIN, WITH LIGHTENING HOLES
Bore Nominal Diameter0.1872 INCHES BOTH ENDS IN
Nominal Outside Diameter2.5605 INCHES IN
Face Nominal Width0.125 INCHES IN
Style DesignatorPROTRUDING HUB
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5962-00-097-94871672 INTERCHANGEABLE
Microcircuit,linear
Modular Devices Inc Dba Modular Devices Inc
6610-00-128-77621681 INTERCHANGEABLE
Plate Assy,roll,ind
Mission Systems Davenport Inc.
5905-00-192-3497 INTERCHANGEABLE
Resistor,fixed,film
5935-00-204-980610187817 INTERCHANGEABLE
Connector,plug,electrical
Us Army Aviation and Missile Command
6240-00-255-01633024A8737 INTERCHANGEABLE
Lamp,incandescent
Middleby Marshall Inc Toastmaster Cooking and Warming Equipment Div
6210-00-299-6386168-1 INTERCHANGEABLE
Light,panel
Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
2805-00-312-835561136E INTERCHANGEABLE
Valve,poppet,engine
Dresser, Llc
2920-00-401-428216-81 INTERCHANGEABLE
Cable
Motorola Automotive Electronics
5905-00-432-0380 INTERCHANGEABLE
Resistor,fixed,film
5330-00-641-4255FUET135A INTERCHANGEABLE
Seal,plain Encased
Schramm, Inc.
Cross-Reference Index
Part NumberManufacturer
1681 Profile Gear Corp (USA)
1681 PRIMARY L3harris Technologies, Inc. Div Space and Airborne Systems (USA)
1672 L3harris Technologies, Inc. Div Space and Airborne Systems (USA)
Related Parts
5962-00-097-9487INTERCHANGEABLE
MICROCIRCUIT,LINEAR
1672
6610-00-128-7762INTERCHANGEABLE
PLATE ASSY,ROLL,IND
1681
5905-00-192-3497INTERCHANGEABLE
RESISTOR,FIXED,FILM
5935-00-204-9806INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
10187817
6240-00-255-0163INTERCHANGEABLE
LAMP,INCANDESCENT
3024A8737
6210-00-299-6386INTERCHANGEABLE
LIGHT,PANEL
168-1
2805-00-312-8355INTERCHANGEABLE
VALVE,POPPET,ENGINE
61136E
2920-00-401-4282INTERCHANGEABLE
CABLE
16-81
5905-00-432-0380INTERCHANGEABLE
RESISTOR,FIXED,FILM
5330-00-641-4255INTERCHANGEABLE
SEAL,PLAIN ENCASED
FUET135A
5950-00-681-7270INTERCHANGEABLE
TRANSFORMER,POWER
1681
4320-00-756-7980INTERCHANGEABLE
CHECK

Frequently Asked Questions

What is NSN 3020-00-541-6833?

NSN 3020-00-541-6833 is a Gear,spur, manufactured by L3harris Technologies, Inc. Div Space and Airborne Systems, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-541-6833?

NSN 3020-00-541-6833 has 3 cross-referenced part numbers: 1681 (Profile Gear Corp), 1681 (L3harris Technologies, Inc. Div Space and Airborne Systems), 1672 (L3harris Technologies, Inc. Div Space and Airborne Systems).

What NSN replaces 3020-00-541-6833?

There are 12 known substitutes for 3020-00-541-6833: 5962-00-097-9487, 6610-00-128-7762, 5905-00-192-3497 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1681?

Key specifications for 1681: Pitch Diameter: 2.5000 INCHES NOMINAL IN; Tooth Form: STANDARD; Nominal Distance Between Body Face and Protruding Hub End: 0.1750 INCHES FIRST END IN; Hub Style Designator: 1 STEP FIRST END. 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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