Easy Splice 0.354" +/- .014" (9.0+/-.37 MM) - 75 Duro - Brown FKM O-Ring Cord - Eagle Elastomer Inc.
37mm ID x 44mm OD x 3.5mm thick O-ring. Buna-70. Quan 1. | eBay
ZMSCH2.5X37 - Value Collection - 37mm ID x 42mm Od Buna-N O-Ring 2.5mm Thick, Round Cross Section, Durometer - /Pk - 6in. x 4in. x 0.13in. - 100/PK - CA of 2 PK
32mm ID x 37mm OD x 2.5mm thick O-ring. Buna-70. Quan 2. | eBay
37mm ID x 43mm OD x 3mm thick O-ring. Buna-70. Quan 2. | eBay
4.5mm X 37mm (NBR) Buna-N 70 Duro Metric O-Ring [N4.50x037] : The O-Ring Store LLC, We make getting O-Rings easy!
O-Ring | 37mm Aluminum Cyclone | Zefon International
37x2.5 Oring 37mm Id X 2.5mm Cs Epdm Ethylene Propylene O Ring O-ring Sealing Rubber - Oil Seals & Other Seals - AliExpress
30mm ID x 37mm OD x 3.5mm thick O-ring. Buna-70. Quan 2. | eBay