PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

UL9102-1PC48Gear,spur

The Electric Tachometer Corp. · NSN 3020-00-618-0086 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-618-0086 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-618-0086. Primary manufacturer part number: UL9102-1PC48.
Features
  • Gear,spur — FSC 3020
  • Bore Style: PLAIN BOTH ENDS
  • Bore Nominal Diameter: 0.251 INCHES BOTH ENDS IN
  • Body Style: PLAIN, SOLID
  • Nominal Outside Diameter: 1.813 INCHES IN
  • Style Designator: PROTRUDING HUB
  • Teeth Quantity: 56
  • Precision Classification: QUALITY NUMBER 9
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Copper Alloy 230 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-618-0086, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is The Electric Tachometer Corp.. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-618-0086
Primary Part NumberUL9102-1PC48
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerThe Electric Tachometer Corp.
StatusACTIVE
Bore StylePLAIN BOTH ENDS
Bore Nominal Diameter0.251 INCHES BOTH ENDS IN
Body StylePLAIN, SOLID
Nominal Outside Diameter1.813 INCHES IN
Style DesignatorPROTRUDING HUB
Teeth Quantity56
Precision ClassificationQUALITY NUMBER 9
Hub Style DesignatorPINNED FIRST END
Nominal Distance Between Body Face and Protruding Hub End0.219 INCHES FIRST END IN
Hub Nominal Diameter0.563 INCHES FIRST END IN
MaterialCOPPER ALLOY 230 OVERALL
Pitch Diameter1.7500 INCHES NOMINAL IN
Material Document and ClassificationQQ-B-613,ALLOY 230,1/2H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Tooth FormSTANDARD
Pressure Angle20.0000 DEGREES
Face Nominal Width0.062 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5120-01-057-4581A6-7-8 INTERCHANGEABLE
Positioner,crimping Tool
Daniels Manufacturing Corporation
4720-01-061-4953A628-10 INTERCHANGEABLE
Tubing,nonmetallic
Clark-Reliance Llc Dba Jacoby-Tarbox
5330-01-227-7725A678 INTERCHANGEABLE
Gasket
Champion Aerospace Llc
Cross-Reference Index
Part NumberManufacturer
UL9102-1PC48 The Electric Tachometer Corp. (USA)
9L77 The Electric Tachometer Corp. (USA)
A678 The Electric Tachometer Corp. (USA)
UL9102-1PC48 Dynalec Corporation (USA)
A678 Dynalec Corporation (USA)
9L77 Dynalec Corporation (USA)
Related Parts
5120-01-057-4581INTERCHANGEABLE
POSITIONER,CRIMPING TOOL
A6-7-8
4720-01-061-4953INTERCHANGEABLE
TUBING,NONMETALLIC
A628-10
5330-01-227-7725INTERCHANGEABLE
GASKET
A678

Frequently Asked Questions

What is NSN 3020-00-618-0086?

NSN 3020-00-618-0086 is a Gear,spur, manufactured by The Electric Tachometer Corp., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-618-0086?

NSN 3020-00-618-0086 has 6 cross-referenced part numbers: UL9102-1PC48 (The Electric Tachometer Corp.), 9L77 (The Electric Tachometer Corp.), A678 (The Electric Tachometer Corp.), UL9102-1PC48 (Dynalec Corporation), A678 (Dynalec Corporation) and 1 more.

What NSN replaces 3020-00-618-0086?

There are 3 known substitutes for 3020-00-618-0086: 5120-01-057-4581, 4720-01-061-4953, 5330-01-227-7725. Verify interchangeability with system specifications before substitution.

What are the specifications of UL9102-1PC48?

Key specifications for UL9102-1PC48: Bore Style: PLAIN BOTH ENDS; Bore Nominal Diameter: 0.251 INCHES BOTH ENDS IN; Body Style: PLAIN, SOLID; Nominal Outside Diameter: 1.813 INCHES IN. 16 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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