NATO Stock Number
3020-00-752-2398
Sold in multiples of
DEMIL
NO
Counterbore Diameter
0.812 inches and 1.562 inches
Counterbore Depth
1.031 inches and 0.375 inches
Outside Diameter
3.296 inches
Overall Length
1.469 inches
Bolt Circle Diameter
1.875 inches
Flange Thickness
0.188 inches
Thread Size
10-32
Bore Diameter
Between 0.630 inches and 0.635 inches
Bore Length
1.250 inches
Pitch Diameter
3.038 inches
Flange Outside Diameter
2.250 inches
Securing Hole Quantity
3
Face Width
Between 0.234 inches and 0.297 inches
Guide
Not included
Design Form
Plain
Bore Type
Straight
Metallic Hardness Rating And Location
26.0 rockwell c body and 32.0 rockwell c body
Counterbore Feature
Included
Counterbore Location
Bb end
Hole Location
On sprocket face
Keying Facility
Not included
Securing Method
Threaded hole
Lightening Hole
Not included
Protruding Hub Characteristic
Plain
Securing Location
Bb end
Belt/chain/film Size For Which Designed
Roller chain
Roller Chain Pitch Type For Which Designed
Single pitch
Teeth Row Quantity
1
Teeth Quantity Per Row
19
Asa Standard Chain Number
40
Hardness Rating Test Method
Rockwell
Teeth Hardness Rating
Between 50.0 rockwell c and 55.0 rockwell c
Bore Bearing
Not included
Hub External Keyway
Not included
Tooth Pitch
0.500 inches
Hub End Outside Diameter And Location
1.875 inches aa end
Distance From Outside Flange/rim To Hub End And Location
1.063 inches bb end
Material
Steel, qq-s-624, fs4140-canceled or steel, qq-s-624, fs4150-canceled
Material
Steel comp 4140 or steel comp 4150
Material Specification
Qq-s-624, fs4140-canceled federal specification 1st material response and qq-s-624, fs4150-canceled federal specification 2nd material response
Surface Treatment
Phosphate
Style Designator
Plain
Surface Treatment
Phosphate
