PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

98430010WGear,antibacklash,spur

Westfield Precision Products Inc West Coast Gear Products Div · NSN 3020-01-031-3872 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-031-3872 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-031-3872. Primary manufacturer part number: 98430010W.
Features
  • Gear,antibacklash,spur — FSC 3020
  • Surface Treatment: PASSIVATE OVERALL
  • Material: STEEL CORROSION RESISTING OVERALL
  • Tooth Form: STANDARD
  • Nominal Outside Diameter: 3.0000 INCHES IN
  • Style Designator: PROTRUDING HUB
  • Clamping Surface Nominal Length: 0.140 INCHES FIRST END IN
  • Pitch Diameter: 2.9688 INCHES NOMINAL IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Gear,antibacklash,spur, cataloged under National Stock Number 3020-01-031-3872, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Westfield Precision Products Inc West Coast Gear Products Div. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-01-031-3872
Primary Part Number98430010W
Item NameGear,antibacklash,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerWestfield Precision Products Inc West Coast Gear Products Div
StatusACTIVE
Surface TreatmentPASSIVATE OVERALL
MaterialSTEEL CORROSION RESISTING OVERALL
Tooth FormSTANDARD
Nominal Outside Diameter3.0000 INCHES IN
Style DesignatorPROTRUDING HUB
Clamping Surface Nominal Length0.140 INCHES FIRST END IN
Pitch Diameter2.9688 INCHES NOMINAL IN
Surface Treatment Document and ClassificationMIL-STD-171,FINISH NO. 5.4.1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Pressure Angle20.0000 DEGREES
Bore StylePLAIN BOTH ENDS
Precision ClassificationQUALITY NUMBER 10
Nominal Distance Between Body Face and Protruding Hub End0.283 INCHES FIRST END IN
Teeth Quantity190
Hub Style DesignatorSPLIT FIRST END
Attachment MethodCLAMP
Face Nominal Width0.104 INCHES IN
Hub Nominal Diameter0.312 INCHES FIRST END IN
Bore Nominal Diameter0.250 INCHES BOTH ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5310-00-011-3114 INTERCHANGEABLE
Washer,lock
5330-00-051-6293 INTERCHANGEABLE
Gasket
5360-00-576-8386901048 INTERCHANGEABLE
Spring,helical,compression
Mission Systems Orchard Park Inc
5305-01-333-3760901048 INTERCHANGEABLE
Screw,machine
Comrod Sweden Ab
Cross-Reference Index
Part NumberManufacturer
98430010W Westfield Precision Products Inc West Coast Gear Products Div (USA)
901048 Raytheon Company Dba Raytheon (USA)
901048-1C Raytheon Company Dba Raytheon (USA)
K901048-1C Kosmo Gears (USA)
Related Parts
5310-00-011-3114INTERCHANGEABLE
WASHER,LOCK
5330-00-051-6293INTERCHANGEABLE
GASKET
5360-00-576-8386INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
901048
5305-01-333-3760INTERCHANGEABLE
SCREW,MACHINE
901048

Frequently Asked Questions

What is NSN 3020-01-031-3872?

NSN 3020-01-031-3872 is a Gear,antibacklash,spur, manufactured by Westfield Precision Products Inc West Coast Gear Products Div, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-031-3872?

NSN 3020-01-031-3872 has 4 cross-referenced part numbers: 98430010W (Westfield Precision Products Inc West Coast Gear Products Div), 901048 (Raytheon Company Dba Raytheon), 901048-1C (Raytheon Company Dba Raytheon), K901048-1C (Kosmo Gears).

What NSN replaces 3020-01-031-3872?

There are 4 known substitutes for 3020-01-031-3872: 5310-00-011-3114, 5330-00-051-6293, 5360-00-576-8386 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 98430010W?

Key specifications for 98430010W: Surface Treatment: PASSIVATE OVERALL; Material: STEEL CORROSION RESISTING OVERALL; Tooth Form: STANDARD; Nominal Outside Diameter: 3.0000 INCHES IN. 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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