Type 657NS Key 4
5
6 8
9
10
11
12
13
14
15
16
17
18
Description Diaphragm Plate, steel Size 40 Size 45 Size 70 Size 80 Lower Diaphragm Casing, zn pl steel Size 40 Size 45 Size 70 Size 80 Spring, steel Cap Screw, steel Size 40 (6 req’d) Size 45 (8 req’d) Size 70 (12 req’d) Size 80 (36 req’d) Yoke, steel Size 40 Size 45 Size 70 Size 80 Actuator Stem, pl steel Size 40 Size 45 Size 70 2 in. (51 mm) max travel 2 to 3 in. (51 to 76 mm) travel 3 to 4 in. (76 to 102 mm) travel Size 80 Lower Spring Seat, steel Size 40 Size 45 Size 70 Size 80 Adjusting Screw, pl steel Size 40 Size 45 Size 70 Size 80 Lower Diaphragm Plate, steel Size 40 Size 45 Size 70 Indicator Disc, stainless steel Size 40 Size 45 Size 70 Size 80 Hex Nut, pl steel Size 40 Size 70 Hex Nut, pl steel Size 40 Size 45 (2 req’d) Size 70 Size 80 (2 req’d) 1 in. (25.4 mm) stem 1-1/4 in. (31.8 mm) stem Machine Screw, stainless steel Size 40 & 45 (2 req’d) Size 70 (2 req’d) Size 80 ( 2 req’d) Indicator Scale, stainless steel
*Recommended spare parts
Part Number 3H511122012 2H511322012 2N757522012 16A0859X012
2E806325062 3E831625062 2N127125062 2N354722012 see following table 1A368424052 1A368424052 1N129328992 1A340924052
Key 19 20 22
23
24 25 26
35A9452X012 35A9446X012 45A9449X012 45A9932X012 1E807124102 1J332924102 1N129424102 1N132524012 11A5522X012 26A0855X012 1R179923122 1R180023122 1N757722012 16A0860X012 1E807324102 1E832624102 1N129724102 16A0853X012 1F885824092 1F890924092 1U142024092 1E807538992 16A0754X012 1B971838992 16A1027X012 1A413224122 1A351124122 1A353724122 1A353724122 1A351124122 1C635224122 0W073524122 59081160X12 1E831338992 1A343128982 see following table
28 32 33
Description
Part Number
Nameplate, stainless steel Drive Screw, stainless steel (4 req’d) Cap Screw, pl steel Size 40 (16 req’d) Size 45 (20 req’d) Size 70 (28 req’d) Size 80 (36 req’d) Hex Nut, pl steel Size 40 (16 req’d) Size 45 (20 req’d) Size 70 (28 req’d) Size 80 (36 req’d) Twin Speed Nut, stainless steel Size 70 only Washer, steel Size 45 & 70 Stem Connector Assembly, stainless steel Size 40 Size 45 Size 70 Size 80 1 in. (25.4 mm) stem 1-1/4 in. (31.8 mm) stem Machine Screw, pl carbon steel (2 req’d) Size 80 only Washer, steel (2 req’d) Size 70 only Pipe Bushing, pl steel Size 70 only
12B6508X0A2 1A368228982 1E760324052 1A675124052 1A368324052 1A915524052 1A346524122 1A346524122 1A346524122 1A340324122 1E833538992 1E833628992 18A1668X012 18A1671X012 25A8878X012 36A1182X012 36A1183X012 1H736528982 1E873028992 1C3790X0012
Note: Key numbers 34 through 52 are for size 80 only. 34 35 36 37 38 39 40 41 42 43 44* 45* 46 47 48 49 50 51 52* 53 54
67 89
91 242
Adjustable Travel Stop, steel Spring Case Assembly, steel Spring Seat Guide, brass Bearing Retainer, steel Shoulder Screw, pl steel Travel Stop Bearing, steel Travel Stop Race, steel (2 req’d) Spring Seat Bearing, steel Spring Seat Race, steel (2 req’d) Vent Assembly O-Ring, fluoroelastomer (2 req’d) O-Ring, fluoroelastomer Seal Bushing, brass Snap Ring, stainless steel Upper Diaphragm Plate, steel Hex Nut, steel (2 req’d) Hex Nut, steel Casing Flange, steel Gasket, composition Lubriplate MAG-1 or equivalent (not furnished with actuator) Lubricant (Size 80 only) (not furnished with actuator) Radiation Service Nye Nyogel 718B or equivalent Other Service Lubriplate MAG-1 or equivalent Set Screw, carbon steel Straight Pin, brass Size 40 Size 45 Size 70 Locknut, pl steel (Size 80 only) Warning Nameplate
26A0850X012 16A0852X012 16A0865X012 16A0861X012 16A0876X012 16A0877X012 16A0878X012 16A0879X012 16A0880X012 17A5515X012 16A1178X012 1D4392X0022 26A0856X012 1H744037022 16A0858X012 1C1122X0042 16A0851X012 16A0866X012 1H7369X0012 ---
----16A9186X012 16A9187X012 16A9188X012 16A9189X012 16A9190X012 14B6769X0B2
15