18674

View detailed technical data, stock status, and sourcing information for: 18674
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Federal Supply Group

Mechanical Power Transmission Equipment

Federal Supply Classification

3020 Gears, Pulleys, Sprockets and Transmission Chain

National Stock Number

3020-00-437-7119

Item Name Code

08111

Assigment Date

09/03/1969 (56 years ago)

2.255 inches minimum and 2.258 inches maximum bore diameter, 3.312 inches nominal bore length, 4.250 inches nominal overall length, 20.000 inches nominal outside diameter, 3.875 inches nominal face width

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Outside Diameter: 20.000 inches nominal
Overall Length: 4.250 inches nominal
Bore Diameter: 2.255 inches minimum and 2.258 inches maximum
Bore Length: 3.312 inches nominal
Face Width: 3.875 inches nominal
Design Form: plain
Bore Type: straight
Bearings: not included
Counterbore Feature: not included
Keying Facility: not included
Split Hub Feature: not included
Lightening Hole: not included
Integral Cooling Vane: not included
Crown Face: not included
Rim Type: solid
Bore Feature: included
Protruding Hub Characteristic: plain
Hub End Outside Diameter And Location: 4.000 inches nominal aa end and 4.000 inches nominal bb end
Distance From Outside Flange/Rim To Hub End And Location: 0.375 inches nominal aa end and 0.938 inches nominal bb end
Special Features: 1/2 in. by 45 degchamfer id of protruding hub,1/8-27 @pipe tap in other end of hub
Material: iron cast overall
Style Designator: webbed or spoked

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
18674	Flat Pulley
R18674	Flat Pulley

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 3020-00-437-7119?

The FSCG of the NSN 3020-00-437-7119 is 3020

Does the NSN 3020-00-437-7119 have a Schedule B code assigned?

Yes, the Schedule B code is 8487900080

Does NSN 3020-00-437-7119 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 3020-00-437-7119 contain precious materials?

Precious metal content is unknown

Does NSN 3020-00-437-7119 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 3020-00-437-7119 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Wed, Sep 3, 1969