71673-1

View detailed technical data, stock status, and sourcing information for: 71673-1
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Federal Supply Group

Mechanical Power Transmission Equipment

Federal Supply Classification

3020 Gears, Pulleys, Sprockets and Transmission Chain

National Stock Number

3020-00-916-6949

Item Name Code

04456

Assigment Date

07/18/1966 (60 years ago)

A toothed wheel whose teeth or sprockets are designed to be engaged with the links of a pitch chain, track, or the like. It is usually used for transmitting power.

0.375 inches nominal overall length, 0.668 inches nominal outside diameter, 0.138-32 thread size, 0.375 inches nominal bore length, 0.250 inches nominal bore diameter

Product Characteristics

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

Outside Diameter: 0.668 inches nominal
Overall Length: 0.375 inches nominal
Thread Size: 0.138-32
Bore Diameter: 0.250 inches nominal
Bore Length: 0.375 inches nominal
Pitch Diameter: 0.616 inches nominal
Securing Hole Quantity: 1
Furnished Items And Quantity: setscrew 1
Hub Outside Diameter: 0.500 inches nominal both ends
Face Width: 0.125 inches nominal
Design Form: plain
Bore Type: straight
Distance From Hub End To Flange End: 0.250 inches nominal both ends
Hole Location: located on periphery of hub
Securing Method: threaded hole
Protruding Hub Characteristic: plain
Securing Location: aa end
Teeth Row Quantity: 1
Teeth Quantity Per Row: 13
Hardness Rating Test Method: not rated
Tooth Pitch: 0.148 inches nominal
Material: steel comp 303 or steel comp 303se
Material Document And Classification: mil-s-7720, comp 303s, cond a mil spec 1st material response and mil-s-7720, comp 303se, cond a mil spec 2nd material response
Surface Treatment: passivate
Style Designator: plain

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
3020-00-702-6537	No Name Available	07/20/1970

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
143329-1	Sprocket Wheel
169-36-1	Sprocket Wheel
71673	Sprocket Wheel
71673-1	Sprocket Wheel
EM5-13	Sprocket Wheel

FAQs

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

What is the FSCG of the NSN 3020-00-916-6949?

The FSCG of the NSN 3020-00-916-6949 is 3020

Does the NSN 3020-00-916-6949 have a Schedule B code assigned?

Yes, the Schedule B code is 8483901000

Does NSN 3020-00-916-6949 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 3020-00-916-6949 contain precious materials?

Precious metal content is unknown

Does NSN 3020-00-916-6949 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 3020-00-916-6949 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Mon, Jul 18, 1966