Graco 309550U Mix Chamber Kits, Round Pattern Guns, Flat Pattern Guns, Sample part no. AR4242

Parts

Mix Chamber Kits

Round Pattern Guns

Mix Chamber Kit	Nozzle	Nozzle Drill	Impingement	Impingement	Counterbore	Counterbore
(includes drill bits)	Orifice	Bit Size,	Port Size	Port Drill Bit	Size	Drill Bit Size,
	Size	in. (mm)		Size, in. (mm)		in. (mm)
AR2020	0.042	#58 (1.00)	0.020	#76 (0.50)	0.060	#53 (1.50)
AR2929	0.052	#55 (1.30)	0.029	#69 (0.70)	0.060	#53 (1.50)
AR3737	0.052	#55 (1.30)	0.037	#63 (0.94)	N/A	N/A
AR4242	0.060	#53 (1.50)	0.042	#58 (1.00)	N/A	N/A
AR5252	0.070	#50 (1.75)	0.052	#55 (1.30)	N/A	N/A
AR6060	0.086	#44 (2.15)	0.060	#53 (1.50)	N/A	N/A
AR7070	0.094	3/32 (2.35)	0.070	#50 (1.75)	N/A	N/A
AR8686	0.116	#32 (2.90)	0.086	#44 (2.15)	N/A	N/A

Flat Pattern Guns

Mix Chamber	Ref. No.	Nozzle	Nozzle Drill	Impingement	Impingement	Counterbore	Counterbore
Kit (includes	40†,	Orifice	Bit Size,	Port Size	Port Drill Bit	Size	Drill Bit Size,
drill bits and	O-ring	Size	in. (mm)		Size, in. (mm)		in. (mm)
o-ring)
AF2020	246360	0.094	3/32 (2.35)	0.020	#76 (0.50)	0.060	#53 (1.50)
AF2929	246360	0.094	3/32 (2.35)	0.029	#69 (0.70)	0.060	#53 (1.50)
AF4242	246360	0.094	3/32 (2.35)	0.042	#58 (1.00)	N/A	N/A
AF5252	246360	0.094	3/32 (2.35)	0.052	#55 (1.30)	N/A	N/A

†Available only in flat mix chamber kits or in 246360 multi-pack kit.

Mix Chamber Part No. Reference Guide

Sample part no. AR4242:

AR	42	42
AR=Air purge	A orifice size	B orifice size
round pattern	(.042 in.)	(.042 in.)
AF=Air purge
flat pattern

309550U 37