mycom UD Series Instruction Manual page 148

 The part code of the O-ring is the one assigned to NBR which is standard material.
When the material of the O-ring is other than NBR, a different part code is used for
each material.
If you are using O-rings made from other than the standard material, please contact
MAYEKAWA when placing an order.
 The Code No. of parts
end of November, 2014:
(P/N 120 Unloader Indicator Assembly, P/N 125 Micro-Switch, P/N 129 Potentiometer)
 For the Code No. of new type indicator part, refer to the separately dedicated
Instruction manual for it.
UD-series Screw Compressor
shown in parentheses below
7-11
Chapter 7 Related Documents
is applied to the product until the
7.2 Parts Configuration Table 125*UD