PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A3099Gear,worm Wheel

Lockheed Martin Corporation Div Rms · NSN 3020-00-877-0226 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-877-0226 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-877-0226. Primary manufacturer part number: A3099.
Features
  • Gear,worm Wheel — FSC 3020
  • Teeth Quantity: 40
  • Bore Style: PLAIN BOTH ENDS
  • Nominal Outside Diameter: 0.681 INCHES IN
  • Hub Style Designator: PLAIN FIRST END
  • Helix Angle: 6.0000 DEGREES
  • Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN
  • Nominal Distance Between Body Face and Protruding Hub End: 0.313 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,worm Wheel, cataloged under National Stock Number 3020-00-877-0226, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN3020-00-877-0226
Primary Part NumberA3099
Item NameGear,worm Wheel
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms
StatusACTIVE
Teeth Quantity40
Bore StylePLAIN BOTH ENDS
Nominal Outside Diameter0.681 INCHES IN
Hub Style DesignatorPLAIN FIRST END
Helix Angle6.0000 DEGREES
Bore Nominal Diameter0.250 INCHES BOTH ENDS IN
Nominal Distance Between Body Face and Protruding Hub End0.313 INCHES FIRST END IN
MaterialCOPPER ALLOY OVERALL
Hub Nominal Diameter0.500 INCHES FIRST END IN
Style DesignatorPROTRUDING HUB
Pressure Angle20.0000 DEGREES
Face Nominal Width0.188 INCHES IN
Pitch Diameter9.6810 INCHES NOMINAL IN
Face TypeCONCAVE
Body StylePLAIN, SOLID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5935-00-192-4734 INTERCHANGEABLE
Jack,telephone
5360-00-200-7016475A59 INTERCHANGEABLE
Spring,helical,compression
Dcm Manufacturing, Inc.
3120-00-542-0799AA309-9 INTERCHANGEABLE
Bearing,sleeve
Chrysler Corp Amplex Div
5360-00-933-1261A3099 INTERCHANGEABLE
Spring,helical,compression
Hartzell Propeller Llc
5961-01-044-1891 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
A3099 Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems (USA)
A3099 PRIMARY Lockheed Martin Corporation Div Rms (USA)
Related Parts
5935-00-192-4734INTERCHANGEABLE
JACK,TELEPHONE
5360-00-200-7016INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
475A59
3120-00-542-0799INTERCHANGEABLE
BEARING,SLEEVE
AA309-9
5360-00-933-1261INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
A3099
5961-01-044-1891INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 3020-00-877-0226?

NSN 3020-00-877-0226 is a Gear,worm Wheel, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-877-0226?

NSN 3020-00-877-0226 has 2 cross-referenced part numbers: A3099 (Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems), A3099 (Lockheed Martin Corporation Div Rms).

What NSN replaces 3020-00-877-0226?

There are 5 known substitutes for 3020-00-877-0226: 5935-00-192-4734, 5360-00-200-7016, 3120-00-542-0799 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A3099?

Key specifications for A3099: Teeth Quantity: 40; Bore Style: PLAIN BOTH ENDS; Nominal Outside Diameter: 0.681 INCHES IN; Hub Style Designator: PLAIN FIRST END. 15 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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