PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

178851Pulley,groove

Telemechanics Inc · NSN 3020-00-034-7495 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-034-7495 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-034-7495. Primary manufacturer part number: 178851.
Features
  • Pulley,groove — FSC 3020
  • Groove Width: 0.108 INCHES NOMINAL IN
  • Counterbore Feature: NOT INCLUDED
  • Design Form: PLAIN
  • Groove Quantity: 1
  • Bearings: NOT INCLUDED
  • Bore Type: STRAIGHT
  • Bore Feature: INCLUDED
Applications
  • Applications requiring Plastic Polyamide Nylon Overall construction
General Description

The Pulley,groove, cataloged under National Stock Number 3020-00-034-7495, 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 18 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-034-7495
Primary Part Number178851
Item NamePulley,groove
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerTelemechanics Inc
StatusACTIVE
Groove Width0.108 INCHES NOMINAL IN
Counterbore FeatureNOT INCLUDED
Design FormPLAIN
Groove Quantity1
BearingsNOT INCLUDED
Bore TypeSTRAIGHT
Bore FeatureINCLUDED
Face Width0.158 INCHES NOMINAL IN
Integral Cooling VaneNOT INCLUDED
Split Hub FeatureNOT INCLUDED
Lightening HoleNOT INCLUDED
MaterialPLASTIC POLYAMIDE NYLON OVERALL
Style DesignatorPLAIN
Groove Depth0.078 INCHES NOMINAL IN
Bore Length0.158 INCHES NOMINAL IN
Outside Diameter0.812 INCHES NOMINAL IN
Groove Radius0.039 INCHES NOMINAL IN
Bore Diameter0.203 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-158-7199FMF00141 INTERCHANGEABLE
Bearing,roller,cylindrical
Dana Off Highway Products, Llc
1560-01-164-5991178851 INTERCHANGEABLE
Support,structural Component,air
Rbc Transport Dynamics Corp Div Rbc Transport Dynamics
6130-01-212-9054530203 INTERCHANGEABLE
Power Supply Assembly
Navy, United States Department of the Dba Naval Surface Warfare Center Div Naval Surface Warfare Center Crane Division
Cross-Reference Index
Part NumberManufacturer
178851 American Telephone and Telegraph Co (USA)
178851 PRIMARY Telemechanics Inc (USA)
Related Parts
3110-00-158-7199INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
FMF00141
1560-01-164-5991INTERCHANGEABLE
SUPPORT,STRUCTURAL COMPONENT,AIR
178851
6130-01-212-9054INTERCHANGEABLE
POWER SUPPLY ASSEMBLY
530203

Frequently Asked Questions

What is NSN 3020-00-034-7495?

NSN 3020-00-034-7495 is a Pulley,groove, manufactured by Telemechanics Inc, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-034-7495?

NSN 3020-00-034-7495 has 2 cross-referenced part numbers: 178851 (American Telephone and Telegraph Co), 178851 (Telemechanics Inc).

What NSN replaces 3020-00-034-7495?

There are 3 known substitutes for 3020-00-034-7495: 3110-00-158-7199, 1560-01-164-5991, 6130-01-212-9054. Verify interchangeability with system specifications before substitution.

What are the specifications of 178851?

Key specifications for 178851: Groove Width: 0.108 INCHES NOMINAL IN; Counterbore Feature: NOT INCLUDED; Design Form: PLAIN; Groove Quantity: 1. 18 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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