RIPOFF: Fuel Strainer washer & seal kits

[SkyKing]

GMAs... and anyone else tackling the fuel strainer:

You'll find that the O-ring part numbers have all been changed from the ones listed in the parts manual! Here's the new numbers for Figure #120 in the Cessna Illustrated Parts Manual for the 1973-1980 Model 337 Pressurized Series:

NAS1593-111 superceded by M83248/1-111 ... List price: $0.34
NAS1593-138 superceded by M83248/1-138 ... List price: $1.61
NAS1593-010 superceded by M83248/1-010 ... List price: $0.31

Okay, that takes care of Index Items #4, #5 and #16. Now, what about these:

Index Item #8 - P/N 0756009-8 Gasket... List price: $13.00
Index Item #14 - P/N S1450-27A7-032 Washer... List price: $7.66

GMAs, is #14 a rubber or metal washer... and do these need to be replaced when servicing the strainer??? The parts manual calls for two each per plunger. If not, then the only other item needed is #8, the Gasket.

BTW, the Plunger Assembly, P/N 0756010-6 is superceded by P/N 0756010-11 and carries a list price of $109 bucks! And the standpipe, which was the subject of a prior safety notice by GMAS on the old UNO-Skymaster website, P/N 0756011-1 carries a list price of $116. Does anyone else have these available at a more reasonable price???

SkyKing