22 23
3
3M™ Series 19 Spray Gun Parts Identifi cation
Item Description  Replacement PN
Retaining Ring  91-0431 
Air Cap (Composite)  91-009-XXX2 
2*  Air Cap (Aluminum)  91-071-XXX
Fluid Nozzle  91-143-XXDT**   3 
Spray Gun Handle4 
Delrin® Needle Tip  91-107-XXX/4  (Pack of 4) 5 
Stainless Steel Needle Shaft  98-0096 
Spring LG-27/57 
Needle Adjustment Screw  97-0238 
O-Ring  UH-1405/10  (Pack of 10)9 
Needle Guide   91-202/2  (Pack of 2)10 
Packing Nut Spacer     11 
Compression Spring  91-199/3  (Pack of 3) 12 
Packing Nut  91-20113 
Valve Seat14 
Valve Spring15 
O-Ring16 
Valve Cap  97-034   17 
E-Clip   18 
O-Ring 19 
Fan Air Fitting  97-04320 
Fan Valve Stem  97-04121 
O-Ring22 
Fan Air Adjustment Knob  97-04023 
Screw24 
Air Inlet Tube25 
Handle Cap26 
Air Inlet Fitting27 
O-Ring28 
Seal Housing  97-02929 
Lip Seal30 
Spacer31 
Retaining Ring32 
Valve Stem33 
Valve Stem Cap34 
Pressure Relief Stem  LFG-46535 
Pressure Relief Stem Cap  91-109/10  (Pack of 10)36 
E-Clip37 
Trigger Pin  97-03738 
Trigger Pivot Pin  97-03839 
Trigger 97-03640 
Spray Gun Maintenance Kit  98-049   41 
Self Adjusting Packing Kit  91-20042 
* Denotes differences in Air Cap Material
** This part is ordered as part of a set with item # 5
3M™ Series 19 Spray Gun Parts Identifi cation