PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12395Gear Sector,helical

Aerosonic Llc · NSN 3020-01-178-0748 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-178-0748 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-178-0748. Primary manufacturer part number: 12395.
Features
  • Gear Sector,helical — FSC 3020
  • Teeth Quantity: 36
  • Bore Style: PLAIN BOTH ENDS
  • Pressure Angle: 14.5000 DEGREES
  • Bore Nominal Diameter: 0.098 INCHES BOTH ENDS IN
  • Material: COPPER ALLOY OVERALL
  • Pitch Radius: 0.6090 INCHES NOMINAL IN
  • Face Nominal Width: 0.020 INCHES IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Copper Alloy Overall construction
General Description

The Gear Sector,helical, cataloged under National Stock Number 3020-01-178-0748, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Aerosonic Llc. Government technical data includes 8 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-01-178-0748
Primary Part Number12395
Item NameGear Sector,helical
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAerosonic Llc
StatusACTIVE
Teeth Quantity36
Bore StylePLAIN BOTH ENDS
Pressure Angle14.5000 DEGREES
Bore Nominal Diameter0.098 INCHES BOTH ENDS IN
MaterialCOPPER ALLOY OVERALL
Pitch Radius0.6090 INCHES NOMINAL IN
Face Nominal Width0.020 INCHES IN
Nominal Outside Radius0.615 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5310-00-171-710612395 INTERCHANGEABLE
Washer,flat
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5940-00-845-9784123-8 INTERCHANGEABLE
Terminal,lug
Zierick Mfg Corp
5962-01-071-331512395 INTERCHANGEABLE
Microcircuit,linear
Giga-Tronics Incorporated Dba Giga-Tronics
5963-01-312-6193591887-1 INTERCHANGEABLE
Module,termination
Te Connectivity Corporation
4140-01-397-228312395 INTERCHANGEABLE
Impeller,fan,centrifugal
Laguna Pueblo of Dba Laguna Tribal Courts
6525-01-574-8663900-0258-01 INTERCHANGEABLE
Seal,light,caterpillar Brush,com
Minxray Inc
Cross-Reference Index
Part NumberManufacturer
12395 PRIMARY Aerosonic Llc (USA)
Related Parts
5310-00-171-7106INTERCHANGEABLE
WASHER,FLAT
12395
5940-00-845-9784INTERCHANGEABLE
TERMINAL,LUG
123-8
5962-01-071-3315INTERCHANGEABLE
MICROCIRCUIT,LINEAR
12395
5963-01-312-6193INTERCHANGEABLE
MODULE,TERMINATION
591887-1
4140-01-397-2283INTERCHANGEABLE
IMPELLER,FAN,CENTRIFUGAL
12395
6525-01-574-8663INTERCHANGEABLE
SEAL,LIGHT,CATERPILLAR BRUSH,COM
900-0258-01

Frequently Asked Questions

What is NSN 3020-01-178-0748?

NSN 3020-01-178-0748 is a Gear Sector,helical, manufactured by Aerosonic Llc, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-178-0748?

NSN 3020-01-178-0748 has 1 cross-referenced part number: 12395 (Aerosonic Llc).

What NSN replaces 3020-01-178-0748?

There are 6 known substitutes for 3020-01-178-0748: 5310-00-171-7106, 5940-00-845-9784, 5962-01-071-3315 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12395?

Key specifications for 12395: Teeth Quantity: 36; Bore Style: PLAIN BOTH ENDS; Pressure Angle: 14.5000 DEGREES; Bore Nominal Diameter: 0.098 INCHES BOTH ENDS IN. 8 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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