PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

118849Gear,antibacklash,spur

Astronautics Corporation of America · NSN 3020-01-184-9879 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-184-9879 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-184-9879. Primary manufacturer part number: 118849.
Features
  • Gear,antibacklash,spur — FSC 3020
  • Bore Style: PLAIN BOTH ENDS
  • Nominal Outside Diameter: 0.3906 INCHES IN
  • Material: STEEL COMP 4718 OVERALL
  • Pitch Diameter: 0.3593 INCHES NOMINAL IN
  • Teeth Quantity: 23
  • Style Designator: PROTRUDING HUBS
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 4718 Overall construction
General Description

The Gear,antibacklash,spur, cataloged under National Stock Number 3020-01-184-9879, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Astronautics Corporation of America. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-01-184-9879
Primary Part Number118849
Item NameGear,antibacklash,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAstronautics Corporation of America
StatusACTIVE
Bore StylePLAIN BOTH ENDS
Nominal Outside Diameter0.3906 INCHES IN
MaterialSTEEL COMP 4718 OVERALL
Pitch Diameter0.3593 INCHES NOMINAL IN
Teeth Quantity23
Style DesignatorPROTRUDING HUBS
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5945-00-283-63144361345-4 INTERCHANGEABLE
Relay,electromagnetic
Agco Corp Parts Opn
5905-01-200-1386PR1/10TC5-54K90F INTERCHANGEABLE
Resistor,fixed,film
Precision Resistive Products Inc
Cross-Reference Index
Part NumberManufacturer
118849 PRIMARY Astronautics Corporation of America (USA)
Related Parts
5945-00-283-6314INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
4361345-4
5905-01-200-1386INTERCHANGEABLE
RESISTOR,FIXED,FILM
PR1/10TC5-54K90F

Frequently Asked Questions

What is NSN 3020-01-184-9879?

NSN 3020-01-184-9879 is a Gear,antibacklash,spur, manufactured by Astronautics Corporation of America, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-184-9879?

NSN 3020-01-184-9879 has 1 cross-referenced part number: 118849 (Astronautics Corporation of America).

What NSN replaces 3020-01-184-9879?

There are 2 known substitutes for 3020-01-184-9879: 5945-00-283-6314, 5905-01-200-1386. Verify interchangeability with system specifications before substitution.

What are the specifications of 118849?

Key specifications for 118849: Bore Style: PLAIN BOTH ENDS; Nominal Outside Diameter: 0.3906 INCHES IN; Material: STEEL COMP 4718 OVERALL; Pitch Diameter: 0.3593 INCHES NOMINAL IN. 7 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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