This is a A-R95494 O-Ring, 3.150" ID X 3.464" OD X .157" Thickness, Durometer 75, (5/Pack) PN: R95494Main Description As Following : A-R95494 O-Ring; 3.150" ID X 3.464" OD X .157" Thickness, Durometer 75, (5/Pack) P.N: R95494 O-Ring Has Many Applications. Check Size For Ordering.Standard Number Size: SPLStandard Number Code: DDurometer: 75Inside Diameter: 3.150"Material: NitrilOutside Diameter: 3.464"Thickness: .157" Found in Section & Models : Miscellaneous > Miscellaneous, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : O-Ring Has Many Applications. Check Size For Ordering. Standard Number Size: SPL Standard Number Code: D Durometer: 75 Inside Diameter: 3.150" Material: Nitril Outside Diameter: 3.464" Thickness: .157"