20 21
3
3M™ Series 12SZ Spray Gun Parts Identifi cation
Item Description Replacement PN
1 Retaining Ring 91-043
2 Air Cap (Composite) 91-009-XXX
3 Fluid Nozzle 91-148-XXX
4 Closure Ring
5 O-Ring
6 Fluid Passage 91-064-ZZ
7 O-Ring
8 Packing (Graphite) 91-139
9 Packing Nut 91-023
10 Right-Half Spray Gun Handle
11 3/8” Screw
12 1/4” Screw
13 Spray Gun Hook
14 3/8” Screw
15 Valve Seal
16 O-Ring
17 O-ring
18 Threaded Insert
19 Valve Stem
20 Delrin® Needle Tip 91-006-XXX-D
21 Threaded Sleeve 91-041
22 Spring LG-27/5
23 Needle Adjustment Screw 91-068
24 Pressure Relief Stem LFG-465
25 Pressure Relief Stem Cap 91-109/10 (Pack of 10)
26 Valve Cap
27 Valve Cap Washer
28 Piston Return Spring
29 Valve Seal
30 O-Ring
31 Valve Body
32 Valve Body Seal
33 Valve Rod
34 Valve Rod Cap
35 Air Inlet Tube
36 Barbed Fitting
37 Air Inlet
38 O-Ring
39 Fitting
40 Trigger HP-405
41 Trigger Pivot Post 91-014
42 3/8” Screw
43 1/2” (Short) Screw
44 5/8” (Long) Screw
45 Left-Half Spray Gun Handle
46 Viton Seal 2’ UH-753/2
47 Gun Body Replacement 91-152-B
48 Spray Gun Maintenance Kit 91-119
49 O-Ring Replacement Kit 91-249
50 Fluid Passage Assembly 91-064-ZZ
51 50 psi Air Valve Assembly 91-168
52 Fan Adjustment Assembly 91-072
3M™ Series 12SZ Spray Gun Parts Identifi cation
ITEM NO. 43
½” (SHORT) SCREWS INSTALLED
5 PLACES AS INDICATED
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