NM2B SPARE AND REPLACEMENT PARTS (continued)
ITEM DESCRIPTION PART NUMBER
Gas Selector Switch Assembly:
114 Label, O
2
+N
2
O..............................................4108461
115 Label, ALL GASES ...........................................4108462
116 Label, Dot ..................................................4103423
117 Knob ......................................................4103169
Set screw, locking, 8-32 x in. cup pt. ...........................HW10004
(Later style knobs use non-locking set screw) ..................HW04025
118 Camshaft, Gas Selector ........................................4109867
119 Block, Gas Selector Switch .....................................4109866
120 Switch Asm Mounting Screws, 8-32 x in. skt hd (2x) ...............HW01012
121 Lock Washer, #8 int-t (2x) .....................................HW67000
Valve Assembly, Gas Selector:
122 Valve, Gas Selector (2x) ........................................4103621
123 Fitting, 1/16 I.D. Hose x 10-32 (4x) ...............................4103445
124 Washer (4x) .................................................4102165
later design fitting has integral seal (replaces previous two items) ......4112707
125 Valve Asm Mounting Screws, 10-32 x 5/16 in. skt hd (2x) .............HW01022
126 Lock Washer, #10 int-t (2x) ....................................HW67006
127 Flat Washer, #10 (2x) ........................................HW66003
127A Label, vaporizer arrow .....................................4112055
Rev. X
8-17
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