Ingersoll-Rand PM20X-X-X-B02, Operator'S Manual, Page: 4 / 8

NOTE: Seat options -AXX do not require
item 19 “O” ring.
MATERIAL CODE
[A] = Aluminum
[B] = Nitrile
[C] = Carbon Steel
[Co] = Copper
[E] = E.P.R.
[SP] = Santoprene
[SS] = Stainless Steel
[T] = PTFE
PM20X-X-X-B02 Page 4 of 8
PARTS LIST / PM20X-X-X-B02 FLUID SECTION
FLUID SECTION SERVICE KITS (637309-XX)
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KITS INCLUDE: BALLS (See “Ball Options”, refer to -XX in chart below), DIAPHRAGMS (See “Diaphragm Options”, refer to -XX in
chart below), and items 19, 70, 144, 175, (listed below) plus 174 and 94276 Lubriplate FML-2 grease (page 6).
SEAT OPTIONS
PM20X-CSS-XXX-B02
BALL OPTIONS
PM20X-CSS-XXX-B02
“21”
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“22”
(2-1/2” dia.)
-XXX Seat Qty [Mtl] -XXX Ball Qty [Mtl]
-AXX 94328-A (4) [SP] -XAX 93358-A (4) [SP]
-SXX 94353 (4) [SS] -XTX 93358-4 (4) [T]
DIAPHRAGM OPTIONS PM20X-CSS-XXX-B02
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SERVICE KIT
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“7”
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“8”
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“19”
-XXX
-XX = (Ball)
-XX = (Diaphragm) Diaphragm Qty [Mtl] Diaphragm Qty [Mtl] Gasket Qty [Mtl]
-XXA 637309-XA 94329-A (2) [SP] - - - - - - - - - - - 94356 (4) [E]
-XXT 637309-XT 94355-T (2) [T] 94330-A (2) [SP] Y328-237 (4) [T]
CENTER SECTION PART OPTIONS PM20X-CSS-XXX-B02
ALUMINUM STAINLESS STEEL
PM20A-CSS-XXX-B02 PM20S-CSS-XXX-B02
Item Description
(size)
Qty Part No. [Mtl] Part No. [Mtl]
5 Backup Washer (2) 94357-1 [A] 94357-2 [SS]
68 Air Cap (1) 94324-1 [A] 94349-1 [SS]
69 Air Cap (1) 94324-2 [A] 94349-2 [SS]
126 Pipe Plug
(1/4 - 18 N.P.T. x 7/16”)
(2) - - - - - - - - Y17-51-S [SS]
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175 “O” Ring
(3/32” x 1-1/16” o.d.)
(2) - - - - - - - - Y325-118 [B]
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(3/32” x 1” o.d.)
(2) Y325-117 [B] - - - - - - - -
181 Roll Pin
(5/32” o.d. x 3/4” long)
(4) - - - - - - - - Y178-56-S [SS]
COMMON PARTS
Item Description
(size)
Qty Part No. [Mtl] Item Description
(size)
Qty Part No. [Mtl]
1 Rod (1) 94358 [C]
6 Diaphragm Washer (2) 94357-2 [SS]
9 Washer (2) 93065 [SS]
14 Screw
(5/8” - 18 x 2-1/2”)
(2) Y5-111-T [SS]
15 Fluid Cap (2) 95570-1 [SS]
26 Screw
(M10 x 1.5 - 6g x 35 mm)
(8) 94409-2 [SS]
27 Screw
(M10 x 1.5 - 6g x 45 mm)
(16) 94990 [SS]
29 Nut
(M10 x 1.5 - 6g)
(16) 94992 [SS]
43 Ground Lug (1) 93004 [Co]
60 Inlet Manifold (1) 95508 [SS]
61 Outlet Manifold (1) 95509 [SS]
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70 Gasket (2) 94100 [B]
131 Screw
(M10 x 1.5 - 6g x 120 mm)
(4) 94531 [C]
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144 “U” Cup
(3/16” x 1-3/8” o.d.)
(2) Y186-51 [B]
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180 Washer
(0.406” i.d. x 0.031” thick)
(4) 94098 [Co]
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Air Motor Kit Parts, see page 6.
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“Smart Parts” keep these items on hand in addition to the Service Kits for fast repair and reduction of down time.