UST SAE O-Rings - 407-Pc. Set, Model# W5202
Assorted "O" Rings
This product comes in very handy for an array of uses in many settings both at home and in the shop. The assortment is great and the packaging is very useful although the package could be improved a bit by including both metric and standard sizes in one box rather than having to buy both.
October 13, 2014
If you replace O-rings regularly, you know how expensive they can be buying a few at a time. This variety pack is great and the o-rings are of superior quality. I use them for plumbing jobs, automotive and mechanical/grease applications. They are pretty fluid resistant too. These are the standard/SAE versions. The metric version are for sale here too, and function much the same. I recently started using these to quiet metal that rubs together, such as the clevis rings on my bumpers.
April 26, 2013
used this unit to silence the hardware on a deer stand! it has every size you might need. no more metal to metal clanging!
March 14, 2011
this is a good set of o-rings it has every almost every size of coarse there 2 sets available sae and metric i have them both cause you never now when you might need them on a project.
June 1, 2010
Okay for some applications
This set represents about half of all the O-rings defined as “standard” O-rings by the SAE – the set is deficient mostly in the cross-sectional thicknesses of O-rings (thickness of bead of polymer used to make the ring).
O-ring sizes are defined by their internal diameter and their cross-sectional thickness; for a quick determination of size to use (in an axial, not radial, configuration) I use a caliper to determine the ID of the journal where a sleeve or bushing will fit through, the sleeve thickness at the thinnest part of the groove cut into it (the groove is called a gland); the difference is about twice the cross-sectional thickness of the O-ring needed, and take the smaller inside diameter O-ring available nearest the diameter at the thinnest gland thickness. That insures that the O-ring will stretch over the sleeve and not be loose around it. This does not necessarily find the O-ring that the fitting was designed for – it will only give you a close fitting to any O-rings you have available.
The O-rings in this set are elastomer material impervious to water and salt solutions; they are somewhat impervious to oil, they do not withstand brake fluid (a glycol ether blend) - and they cannot be used for gasoline.
For gasoline applications, only a fluorooelastomer like Viton can be used – and such O-rings are expensive.
The seals on lawnmower carburetors and so forth (usually square in cross-section and not circular) are made from polymer (not elastomer) material – and the material used to make these seals does not stretch like a rubber band. The polymer material used to make gasoline seals like that MUST swell when it comes in contact with gasoline.
An O-ring, no matter what it is used for, CANNOT swell.
May 26, 2008
This is a nice set of o-rings. Good quality & variety.
January 22, 2008
407-pc sae o-ring set
O-RINGS ARE USED IN EVERYTHING FROM WATER SOFTNERS TO HAND PUMP SPRAYERS, THIS ASSC. HAVE JUST ABOUT EVERY SIZE I WOULD USE IN EVERYDAY REPAIRS. THE PRICE IS COST EFFECTIVE FOR HOME & SMALL BUSSINESS USE. HOWEVER I TRIED TO SEARCH FOR O-RING & CAME UP EMPTY HAD TO USE CAT. NUMBER.
November 19, 2006