840E17

View detailed technical data, stock status, and sourcing information for: 840E17
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Federal Supply Group

Mechanical Power Transmission Equipment

Federal Supply Classification

3020 Gears, Pulleys, Sprockets and Transmission Chain

National Stock Number

3020-00-040-2169

Item Name Code

04456

Assigment Date

01/01/1963 (63 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.

1/4 in.-20 thread size, keying facility furnished items, 1.3125 inches nominal overall length, 2.4375 inches nominal outside diameter, 0.250 inches nominal keyway width

Product Characteristics

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

Furnished Items: keying facility
Outside Diameter: 2.4375 inches nominal
Overall Length: 1.3125 inches nominal
Keyway Width: 0.250 inches nominal
Thread Size: 1/4 in.-20
Bore Diameter: 1.125 inches minimum and 1.126 inches maximum
Bore Length: 1.3125 inches nominal
Distance From Center Of Bore To Bottom Of Keyway: 0.683 inches maximum
Pitch Diameter: 2.415 inches nominal
Securing Hole Quantity: 1
Furnished Items And Quantity: one 1/4 in. -20 by 3/16 in. lg setscrew
Face Width: 0.240 inches nominal
Design Form: plain
Bore Type: straight
Metallic Hardness Rating And Location: 58.0 rockwell c nominal body
Distance From Hub End To Flange End: 1.0625 inches nominal both ends
Hole Location: located on top of keyway
Keying Facility Type: keyway
Securing Method: threaded hole
Protruding Hub Characteristic: stepped
Securing Location: aa end
Teeth Row Quantity: 1
Teeth Quantity Per Row: 12
Asa Standard Chain Number: 50
Hardness Rating Test Method: rockwell
Teeth Hardness Rating: 50.0 rockwell c minimum
Tooth Pitch: 0.625 inches nominal
Special Features: first step face largest diameter 1.6875 in.,first step length 0.500 in.,second step length 0.5625 in.
Material: steel
Quantity: 1
Style Designator: plain

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
8330110	Sprocket Wheel
840E17	Sprocket Wheel

FAQs

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

What is the FSCG of the NSN 3020-00-040-2169?

The FSCG of the NSN 3020-00-040-2169 is 3020

Does the NSN 3020-00-040-2169 have a Schedule B code assigned?

Yes, the Schedule B code is 8483901000

Does NSN 3020-00-040-2169 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 3020-00-040-2169 contain precious materials?

Item does not contain precious metal.

Does NSN 3020-00-040-2169 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 3020-00-040-2169 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963