3M Series 57UL, Series 57ZZ, Series 56, Series 55ZZ, Series 52 Needle Tip Delrin 91-107-XXX/4

3M™ Series 57 HVLP Automatic Spray Gun Parts Identification

Item	Description	Replacement PN
1	Retaining Ring	91-043
2	Air Cap (Composite)	91-009-XXX
2*	Air Cap (Aluminum)	91-071-XXX
3	Fluid Nozzle
4	Fluid Fitting-Elbow	95-SP2-10
5	Threaded Insert
6	Mounting Bracket	95-037
7	Screw
8	Set Screw	UH-612/5	Pack of 5)
9	Trigger Fitting	95-SP2-8
10	Autogun Body Assembly	95-SP2-1
11	Cylinder Seal (U-Cup)	95-018
12	Piston	95-031
13	O-Ring	UH-768/5	(Pack of 5)
14	Needle Tip (Delrin®)	91-107-XXX/4	(Pack of 4)
15	Needle Shaft	95-033

16Needle Return Spring

17Cylinder Cap (Adjustable)

18	Jam Nut	UH-824
19	Needle Adjustment Screw	95-032
20	Stainless Steel Ball	UH-610
21	Compression Spring	95-013
22	Set Screw	UH-691/5	(Pack of 5)
23	Cylinder Cap (Non-Adjustable)	95-082
24	Plug	95-077
25	O-Ring	UH-1405/10	(Pack of 10)

26Needle Guide

27Compression Spring

28Packing Nut

29	Seal Nut	95-016
30	Teflon® Seal	95-020/2	(Pack of 2)
31	Seal Housing	95-017
32	O-Ring	UH-647/10	(Pack of 10)
33	Needle Cover	95-102
34	Mounting Stud	95-076
35	Manifold Gasket	95-078
36	Manifold Block	95-075
37	Elbow	UH-967
38	Hex Nut with Lock Washer	UH-911
39	Cylinder Cap (Adjustable) Assembly	95-040
40	Universal Maintenance Kit	95-043
41	Fluid Packing Kit	91-200

Note: For all part numbers with X, see page 37 * Denotes difference in material

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