Parts
311688L 23
Part No. 253704 BSPP, Series B
Part No. 253705 NPT, Series B
Ref.
No.
Part No. Description Qty
1 ★ HOUSING, diaphragm; includes
items 1a-1d
1
1a 15A306 ADAPTER, fluid inlet, for 253704 1
198852 ADAPTER, fluid inlet, for 253705 1
1b 198857 O-RING 1
1c 15A290 ADAPTER, fluid outlet, for 253704 1
198855 ADAPTER, fluid outlet, for 253705 1
1d 117036 O-RING 1
2 ◆❖ O-RING 3
3 ❖ BEARING 3
4 117158 O-RING 1
5 197645 CARRIAGE, valve 1
6 15A289 CLAMP, sleeve 1
7 ◆ SHAFT, pump, diaphragm 1
8 ◆ O-RING 1
9 * DIAPHRAGM 2
10 197649 CARRIAGE 1
11 †◆ O-RING 2
12 197651 PLUG 2
13 †◆ O-RING 2
14 197653 CLIP, id 2
15 † CUP, air valve 1
16 † PLATE, air valve 1
17 †◆ O-RING 2
18 †◆ O-RING 1
19 †◆ GASKET, flat 1
20 197659 COVER, valve 1
21 116474 SCREW, cap, socket head; M4x20
Torque to 3.1 N•m (2.3 ft-lb)
4
22 117160 VALVE, safety 1
23 197661 DAMPENER, noise 1
24 197662 PLATE, screw 1
25 116475 SCREW, cap, socket head; M4x12 2
26 ‡ BALL, matrix 4
27 ‡ SEAL, profile 2
28 ‡ SEAT, valve, outlet 2
29 *†‡◆ SEAL, profile 4
30 ‡✖ O-RING 2
31 ‡ SEAT, valve, inlet 2
32 ‡ GUIDE, ball 4
33 197670 DAMPENER, felt, side 1
34 197671 DAMPENER, felt, air inlet side 1
35 15J372 COVER, exhaust 1
36 15J374 COVER, sheet metal, air valve 1
37 15A282 COVER, fluid 2
38 117240 BOLT, cap, socket head; M8x70
Torque to 16 N•m (12 ft-lb)
6
39 115264 BOLT, cap, socket head; M8x18
Torque to 16 N•m (12 ft-lb)
6
40 15A286 ADAPTER, pump diaphragm, for
253704
1
198832 ADAPTER, pump diaphragm, for
253705
1
41 116343 CLAMP, grounding 1
42 ❖ CLIP, ID, C-spring 3
43 ❖ O-RING 3
44 116595 SCREW, M4 button head 2
45 111307 WASHER (used with #41, 116343) 1
46▲ 188621 LABEL, warning (not shown) 1
54 258001 HOUSING, cylinder 1
55 † O-RING 2
56
■
Helicoil 12
★ Included in Diaphragm Housing Repair Kit.
Order Kit 261665 for 253704 pumps and 261666
for 253705 pumps.
◆ Included in Shaft Repair Kit 233841.
❖ Included in Bearing Repair Kit. Order Kit 15J647.
* Included in Diaphragm Repair Kit 246011.
† Included in Air Valve Repair Kit 245066.
‡ Included in Ball Check Valve Repair Kit 245067.
✖ Available in 10-pack kit 15D564.
■ Available in Helicoil Repair Kit 24U929 (quantity
16). Also order Helicoil Insert Tool 24U930.
▲ Replacement Warning labels, signs, tags, and
cards are available at no cost.
Ref.
No.
Part No. Description Qty
