Number	Part Number	SMP Order Code	Description
1	550-019	DHXA.S0094	Locknut
2	535-802	DHXA.S0076	Spring
3	520-016	DHXA.S0035	Knob, Control
4	520-030	DHXA.S0038	Washer
5	550-020	DHXA.S0095	Bonnet
6	510-015	DHXA.S0014	O-Ring
7	520-031	DHXA.S0039	Washer
8	510-010	DHXA.S0010	O-Ring
9	550-022	DHXA.S0096	Valve Stem
10	550-023	DHXA.S0097	Seat Assembly
11	550-024	DHXA.S0098	Stud
12	550-029	DHXA.S0100	Side Block
13	520-033	DHXA.S0041	O-Ring, Teflon
14	555-154	DHXA.S0126	Bent Tube Assembly
15	510-012	DHXA.S0012	O-Ring
16	555-155	DHXA.S0127	Bent Tube Assembly w/O-Rings
17	550-095	DHXA.S0158	L.P. Plug, w/O-Ring
18	310-003	DHXA.S0159	O-Ring
19	550-140	DHXA.S0160	Aux. Valve Body
20	550-138	DHXA.S0161	Stem
21	540-095	DHXA.S0162	Washer
22	520-024	DHXA.S0163	Packing
23	550-091	DHXA.S0164	Packing Nut
24	520-025	DHXA.S0165	Knob, Control
25	535-802	DHXA.S0076	Spring
26	550-019	DHXA.S0094	Locknut
27	505-070	DHXA.S0166	Aux. Valve Assembly
28	510-483	DHSL.M0019	O-Ring
	Order Complete See Item #37	For replacement parts Order Kit #525-330
29		DOBHS.S114	Body
30		DOBHS.S114	Spring
31		DOBHS.S114	Poppet
32		DOBHS.S114	O-Ring
33		DOBHS.S114	O-Ring
34		DOBHS.S114	Wiper
35		DOBHS.S114	Seat
36	555-117	DHXA.S0121	Adapter, Brass, 1/4" NPT/O2
37	555-195	DHXA.S0125	One-Way Valve
38	505-060	DHXA.S0167	One-Way Valve Assembly
39	505-024	DHXA.S0006	Side Block Assembly (B)
40	510-682	DHXA.S0189	Head Cushion
	510-654	DHXA.S0190	Head Cushion Bag
40a	510-683	DHXA.S0191	Chin Cushion
	510-639	DHXA.S0192	Chin Cushion Bag
	510-671	DHXA.S0488	Replacement Foam Kit
41	545-015	DHXA.S0083	Nose Block Device
	510-575	DOBHS.S108	Nose Block Pad
42	510-690	DHXA.S0025	Oral Nasal Mask
43	520-020	DHXA.S0036	Valve Body
44	510-550	DHXA.S0026	Valve, Oral Nasal
45	550-081	DHXA.S0210	Nut, Regulator Mount
46	510-490	DHXA.S0209	O-Ring
47	540-054	DHXA.S0080	Earphone Retainer
48	530-527	DOXOS.S067	Washer
49	530-018	DHXA.S0194	Screw
50	530-519	DHXA.S0208	Washer
51	530-702	DHXA.S0196	Snap
52	530-018	DHXA.S0194	Screw
53	530-015	DHXA.S0197	Screw
54	530-078	DHXA.S0172	Screw
57a	530-078	DHXA.S0172	Screw
55	530-540	DHXA.S0073	Washer
56	560-125	DHXA.S0198	Weight, Top
57	530-078	DHXA.S0172	Screw
58	530-527	DOXOS.S067	Washer
59	560-132	DHXA.S0485	Handle
60	530-045	DHXA.S0051	Screw
61	505-107	DHXA.S0457	Helmet, Fibreglass w/Ring
62	560-032	DHXA.S0489	Weight, Port Side
63	530-078	DHXA.S0172	Screw
64	530-070	DHXA.S0055	Screw
65	530-540	DHXA.S0073	Washer
66	530-535	DHXA.S0072	Washer
67	530-415	DHXA.S0066	Washer, Lock
68	530-317	DHXA.S0062	Nut
69	545-016	DHXA.S0084	Air Train
70	530-535	DHXA.S0072	Washer
71	530-317	DHXA.S0062	Nut
72	530-050	DHXA.S0052	Screw
73	510-260	DHXA.S0016	O-Ring
74	520-004	DHXA.S0034	Face Port/ Lens
75	530-052	DHXA.S0053	Screw
76	530-035	DHXA.S0049	Screw
77	510-554	DHXA.S0030	Whisker, Rubber
78	550-061	DHXA.S0118	Spacer
79	540-015	DHXA.S0079	Plate
80	530-045	DHXA.S0051	Screw
81	545-080	DHXA.S0405	Regulator Body
82	550-060	DHXA.S0117	Piston
83	535-807	DHXA.S0078	Spring Set
84	550-059	DHXA.S0116	Spacer
86	520-032	DHXA.S0040	Washer
87	510-011	DHXA.S0011	O-Ring
88	550-055	DHXA.S0114	Packing Nut
89	550-053	DHXA.S0113	Knob, Adjustment
90	530-601	DHXA.S0074	Retaining Pin
91	505-028	DHXA.S0174	Regulator Adjustment Knob Assembly
92	510-553	DHXA.S0029	Diaphragm
93	530-030	DHXA.S0048	Screw
94	545-020	DHXA.S0086	Clamp
95	545-018	DHXA.S0085	Cover Assembly
95a	535-905	DHXA.S0394	Retaining Clip
95b	540-055	DHXA.S0400	Cover
95c	535-810	DHXA.S0389	Spring, Purge Button
95d	520-017	DHXA.S0337	Purge Button
95e	520-078	DHXA.S0490	Purge Button Sticker
96	530-303	DHXA.S0060	Nut
97	550-052	DHXA.S0112	Spacer
98	545-038	DHXA.S0091	Roller Lever
99	530-506	DHXA.S0069	Washer
100	550-050	DHXA.S0111	Jam Nut
101	550-048	DHXA.S0110	Inlet Nipple
102	510-014	DHSL.M0013	O-Ring
103	545-026	DHXA.S0089	Inlet Valve
104	510-552	DHXA.S0028	Exhaust Valve
105	505-069	DHXA.S0243	Demand Regulator Assembly
106	550-062	DHXA.S0119	Knob, Nose Block
107	555-180	DHXA.S0130	Packing Nut
108	560-070	DOBHS.S112	Port Retainer, w/#109
109	550-116	DHXA.S0183	Nose Block Guide
110	510-008	DHXA.S0009	O-Ring
111	510-010	DHXA.S0010	O-Ring
112	530-035	DHXA.S0049	Screw
113	505-110	DHXA.S0187	Sealed Pull Pin
114	530-045	DHXA.S0051	Screw
115	550-122	DHXA.S0232	Spring Spacer
116	535-825	DHXA.S0231	Spring
117	530-032	DHXA.S0226	Screw
118	520-167	DHXA.S0221	Washer
119	540-086	DHXA.S0216	Swing Tongue Catch
120	550-061	DHXA.S0118	Spacer
121	530-546	DHXA.S0188	Washer
122	530-035	DHXA.S0049	Screw
123	550-063	DHXA.S0120	Exhaust Body
124	510-561	DHXA.S0031	Exhaust Valve/Water Dump
125	545-024	DHXA.S0088	Exhaust Cover
126	530-021	DHXA.S0046	Screw
127	515-018	DHXA.S0320	Earphone Right
128	515-019	DHXA.S0321	Earphone Left
	510-542	DHXA.S0281	Earphone Cover Set
	515-008	DHXA.S0316	Speaker
	520-015	DHXA.S0466	Speaker Protector
129	515-029	DHXA.S0448	Microphone
130	515-033	DHXA.S0449	Communications Set, 17K
131	515-055	DHXA.S0334	Wiring Harness
132	330-035	DOXOS.S093	Washer
133	330-030	DOXOS.S100	Screw
134	510-630	DHXA.S0298	Rubber Cover
135	530-525	DHXA.S0070	Washer
136	530-308	DHXA.S0061	Nut
137	550-040	DHXA.S0107	Mount Nut
138	520-130	DHXA.S0244	Communications Module drilled for Posts
	520-132	DHXA.S0450	Comm Module drilled for W.P. Conn/Male
139	510-029	DHXA.S0176	O-Ring
140	315-020	DOXOS.S015	Communications Post
141	515-049	DOXOS.S104	Terminal
142	510-481	DHXA.S0018	O-Ring
143	555-175	DHXA.S0246	Packing Gland
144	520-035	DOBHS.S036	Ferrule, Front
145	520-036	DHXA.S0043	Ferrule, Back
146	555-178	DHXA.S0129	Packing Nut
147	515-045	DHXA.S0033	Waterproof Conn, Male
148	505-047	DHXA.S0185	W.P. Connector Assembly
149	515-023	DHXA.S0446	Comm Assembly w/Posts
	515-024	DHXA.S0447	Comm Assembly w/W.P. Conn
150	320-026	DOXOS.S023	Comm Mount Nut
151	510-450	DHXA.S0237	O-Ring
152	540-105	DHXA.S0217	Split Ring, (2 Required)
153	510-628	DHXA.S0296	Neck Dam, Neoprene (med)
	510-631	DHXA.S0299	Neck Dam, Latex (med)
154	560-078	DHXA.S0441	Stepped Ring
155	530-808	DHXA.S0491	Pull Strap
156	540-115	DHXA.S0218	Strap Plate
157	530-220	DHXA.S0228	Screw
158	530-024	DHXA.S0229	Screw
159	545-100	DHXA.S0406	Chin Strap Assembly
160	530-022	DHXA.S0230	Screw
161	505-119	DHXA.S0453	Neck Ring Assembly (neoprene)
162	530-545	DHXA.S0239	Washer
163	520-165	DHXA.S0223	Washer
164	550-275	DHXA.S0235	Hinge Pin
165	530-200	DHXA.S0240	Bolt
166	560-111	DHXA.S0443	Locking Collar
167	550-113	DHXA.S0236	Adjustment Nut
168	530-547	DHXA.S0383	Washer
169	520-098	DHXA.S0343	Neck Pad w/#168 (2)
170	550-045	DHXA.S0411	T-Washer
171	530-064	DOBHS.S117	Screw

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