PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66426Gear,spur

Textron Lycoming Inc Williamsport Plant · NSN 3020-00-505-9108 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-505-9108 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-505-9108. Primary manufacturer part number: 66426.
Features
  • Gear,spur — FSC 3020
  • Bore Style: FLATTED SIDES BOTH ENDS
  • Style Designator: HUBLESS
  • Nominal Radius: 0.374 INCHES BOTH ENDS IN
  • Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Face Nominal Width: 1.496 INCHES IN
  • Teeth Quantity: 10
  • Nominal Outside Diameter: 1.6190 INCHES IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 1212 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-505-9108, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Textron Lycoming Inc Williamsport Plant. Government technical data includes 12 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-505-9108
Primary Part Number66426
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerTextron Lycoming Inc Williamsport Plant
StatusACTIVE
Bore StyleFLATTED SIDES BOTH ENDS
Style DesignatorHUBLESS
Nominal Radius0.374 INCHES BOTH ENDS IN
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Face Nominal Width1.496 INCHES IN
Teeth Quantity10
Nominal Outside Diameter1.6190 INCHES IN
Tooth FormSTUB
Body StylePLAIN, SOLID
MaterialSTEEL COMP 1212 OVERALL
Pressure Angle20.0000 DEGREES
Pitch Diameter1.3750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-01-231-9659 INTERCHANGEABLE
Valve,angle
5925-01-649-987266426 INTERCHANGEABLE
Circuit Breaker
Generac Mobile Products, Llc
Cross-Reference Index
Part NumberManufacturer
66426 Satair A/s (DNK)
66426 PRIMARY Textron Lycoming Inc Williamsport Plant (USA)
Related Parts
4820-01-231-9659INTERCHANGEABLE
VALVE,ANGLE
5925-01-649-9872INTERCHANGEABLE
CIRCUIT BREAKER
66426

Frequently Asked Questions

What is NSN 3020-00-505-9108?

NSN 3020-00-505-9108 is a Gear,spur, manufactured by Textron Lycoming Inc Williamsport Plant, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-505-9108?

NSN 3020-00-505-9108 has 2 cross-referenced part numbers: 66426 (Satair A/s), 66426 (Textron Lycoming Inc Williamsport Plant).

What NSN replaces 3020-00-505-9108?

There are 2 known substitutes for 3020-00-505-9108: 4820-01-231-9659, 5925-01-649-9872. Verify interchangeability with system specifications before substitution.

What are the specifications of 66426?

Key specifications for 66426: Bore Style: FLATTED SIDES BOTH ENDS; Style Designator: HUBLESS; Nominal Radius: 0.374 INCHES BOTH ENDS IN; Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL. 12 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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