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Parts List: A.O. Smith FSG-100, Series 242/243

  • Use the chart to find the part you need to order. A line art drawing is below the chart to assist you in locating your part.
  • Click on the underlined link to go directly to the part's page for pricing and ordering.
  • Part numbers that are no longer active in the AO Smith database are not included on the chart. In addition, some part numbers have changed to a new part number. Please see AO Smith New Part Cross Reference / Discontinued Part Guidelines for further assistance.
  • You can download and print the original PDF of the A.O. Smith parts list at the bottom of the page.

 

Item Description
FSG-100
Natural Gas
3 Cast Iron Burner 41157-8 (new # 100109678)
4 Thermocouple 23675 (new # 100108267)
5 Pilot - Natural Gas 160228 (new # 100109804)
5 Pilot - Propane 160228-1 (new # 100109718)
6 Draft Hood 39072-200 (new # 100109720)
7+ Draft Hood Brace 194309 (new # 100109445)
8 Inlet Tube 183513 (new # 100111461)
9 Flue Baffle Assembly 194332-1 (new # 100109684)
10 Anode Rod 43817-50 (new # 100109594)
11 Inner Door 39923 (new # 100109442)
12 Outer Door 39112-701 (new # 100110353)
13 Thermostat - Natural Gas 180193-5 (new # 100109674)
14 T & P Relief Valve 43151-2 (new # 100109448)
16 Flue Reducer 35405 (new # 100109288)
17 Pilot Tube 1417-60 (new # 100109617)
18 Orifice - Propane 181778-38 (new # 100109692)
20+ Fitting Breakaway 32365 (new # 100108673)
NOTES:
- The manufacturer may change part numbers and availability at any time.
+ Not Illustrated.

 

 

Download original AO Smith Parts List
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