PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

173507Gear,helical

Telemechanics Inc · NSN 3020-00-764-7836 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-764-7836 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-764-7836. Primary manufacturer part number: 173507.
Features
  • Gear,helical — FSC 3020
  • Body Style: PLAIN, SOLID
  • Teeth Quantity: 22
  • Pitch Diameter: 0.7500 INCHES NOMINAL IN
  • Pressure Angle: 20.0000 DEGREES
  • Material: STEEL OVERALL
  • Helix Angle: 45.0000 DEGREES
  • Bore Nominal Diameter: 0.3750 INCHES BOTH ENDS IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear,helical, cataloged under National Stock Number 3020-00-764-7836, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Telemechanics Inc. Government technical data includes 21 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-764-7836
Primary Part Number173507
Item NameGear,helical
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerTelemechanics Inc
StatusACTIVE
Body StylePLAIN, SOLID
Teeth Quantity22
Pitch Diameter0.7500 INCHES NOMINAL IN
Pressure Angle20.0000 DEGREES
MaterialSTEEL OVERALL
Helix Angle45.0000 DEGREES
Bore Nominal Diameter0.3750 INCHES BOTH ENDS IN
Tooth DirectionLEFT
Teeth TypeSINGLE HELIX
Features ProvidedCASEHARDENED
Hub Style DesignatorPINNED FIRST END
Mounting Hole Nominal Diameter0.145 INCHES TRANSVERSELY THROUGH HUB FIRST END IN
Nominal Distance Between Body Face and Protruding Hub End0.595 INCHES FIRST END IN
Face Nominal Width0.500 INCHES IN
Mounting Hole Type and Quantity1 COUNTERBORED TRANSVERSELY THROUGH HUB FIRST END
Hub Nominal Diameter0.562 INCHES FIRST END IN
Nominal Outside Diameter0.8100 INCHES IN
Tooth FormSTANDARD
Style DesignatorPROTRUDING HUB
Bore StylePLAIN BOTH ENDS
Attachment MethodMOUNTING HOLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-120-3100148447 INTERCHANGEABLE
Bearing,roller,needle
General Motors Llc Dba General Motors Llc
6650-01-394-018517-3507 INTERCHANGEABLE
Binocular
Bushnell Group, Inc Div Bushnell Holdings, Inc.
Cross-Reference Index
Part NumberManufacturer
173507 PRIMARY Telemechanics Inc (USA)
Related Parts
3110-00-120-3100INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
148447
6650-01-394-0185INTERCHANGEABLE
BINOCULAR
17-3507

Frequently Asked Questions

What is NSN 3020-00-764-7836?

NSN 3020-00-764-7836 is a Gear,helical, manufactured by Telemechanics Inc, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-764-7836?

NSN 3020-00-764-7836 has 1 cross-referenced part number: 173507 (Telemechanics Inc).

What NSN replaces 3020-00-764-7836?

There are 2 known substitutes for 3020-00-764-7836: 3110-00-120-3100, 6650-01-394-0185. Verify interchangeability with system specifications before substitution.

What are the specifications of 173507?

Key specifications for 173507: Body Style: PLAIN, SOLID; Teeth Quantity: 22; Pitch Diameter: 0.7500 INCHES NOMINAL IN; Pressure Angle: 20.0000 DEGREES. 21 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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