PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

193431Gear,spur

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 3020-00-273-1384 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-273-1384 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-273-1384. Primary manufacturer part number: 193431.
Features
  • Gear,spur — FSC 3020
  • Hub Nominal Diameter: 1.218 INCHES FIRST END IN
  • Style Designator: PROTRUDING HUB
  • Pitch Diameter: 1.8750 INCHES NOMINAL IN
  • Face Nominal Width: 0.312 INCHES IN
  • Teeth Quantity: 60
  • Tooth Form: STANDARD
  • Bore Nominal Diameter: 0.733 INCHES BOTH ENDS IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-273-1384, 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 - Mitchel Field. Government technical data includes 16 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
NSN3020-00-273-1384
Primary Part Number193431
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusACTIVE
Hub Nominal Diameter1.218 INCHES FIRST END IN
Style DesignatorPROTRUDING HUB
Pitch Diameter1.8750 INCHES NOMINAL IN
Face Nominal Width0.312 INCHES IN
Teeth Quantity60
Tooth FormSTANDARD
Bore Nominal Diameter0.733 INCHES BOTH ENDS IN
Nominal Distance Between Body Face and Protruding Hub End0.438 INCHES FIRST END IN
Surface TreatmentOXIDE OVERALL
Nominal Outside Diameter1.934 INCHES IN
Supplementary FeaturesSTEEL,N 46S17 CLASS 2
Pressure Angle14.5000 DEGREES
Nominal Overall Length0.750 INCHES IN
Hub Style DesignatorPLAIN FIRST END
Bore StylePLAIN BOTH ENDS
Body StylePLAIN, SOLID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5365-00-138-8221193431 INTERCHANGEABLE
Ring,water Pump
Cummins Inc.
5920-00-263-2191 INTERCHANGEABLE
Fuse,cartridge
6105-00-355-8734193-43-1 INTERCHANGEABLE
Stator,motor
Senior Operations Llc Div Senior Aerospace Ketema
5815-00-824-1097193431 INTERCHANGEABLE
Key Assembly
Telemechanics Inc
5360-01-294-292319343-1 INTERCHANGEABLE
Spring,helical,compression
U S Dept of Transportation Federal Aviation Administration
Cross-Reference Index
Part NumberManufacturer
193431 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
325304PC1 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5365-00-138-8221INTERCHANGEABLE
RING,WATER PUMP
193431
5920-00-263-2191INTERCHANGEABLE
FUSE,CARTRIDGE
6105-00-355-8734INTERCHANGEABLE
STATOR,MOTOR
193-43-1
5815-00-824-1097INTERCHANGEABLE
KEY ASSEMBLY
193431
5360-01-294-2923INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
19343-1

Frequently Asked Questions

What is NSN 3020-00-273-1384?

NSN 3020-00-273-1384 is a Gear,spur, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-273-1384?

NSN 3020-00-273-1384 has 2 cross-referenced part numbers: 193431 (Lockheed Martin Corporation Div Rms - Mitchel Field), 325304PC1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 3020-00-273-1384?

There are 5 known substitutes for 3020-00-273-1384: 5365-00-138-8221, 5920-00-263-2191, 6105-00-355-8734 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 193431?

Key specifications for 193431: Hub Nominal Diameter: 1.218 INCHES FIRST END IN; Style Designator: PROTRUDING HUB; Pitch Diameter: 1.8750 INCHES NOMINAL IN; Face Nominal Width: 0.312 INCHES IN. 17 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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