There are 2 versions:
Without centering 
Or with centering 
Advantage with centering: With centering the bonded seal / usitring Multi Seal remains fixed on the bolt or coupling. Ideal for assembly and disassembly.
Metal materials:
Steel galvanized CR6 free, stainless steel Stainless Steel
Elastomer materials:
Among others: NBR, Epdm, VMQ Silicone, HNBR, FKM, FPM, Viton (other materials possible on request). Also with approvals such as KTW, WRC, NSF, WRAS, ACN and FDA, R67 01 LPG GAS.
Dimensions Inch / BSP
Among others: 5/8 – 11/16 – 1/8 – 1/4 – 3/8 – 1/2 – 5/8 – 5/16 – 7/16 – 9/16 – 11/16 – 15/16 – 3/4 – 7/8 – 1 – 1 1/16 – 1 3/16 – 1 5/16 – 1 1/4 – 1 1/8 – 1 1/2 – 1 3/8 – 1 5/8 – 1 7/8 – 1 3/4 – 2 – 2 1/8 – 2 1/4 – 2 1/2
Dimensions M Metric
Among others: M3 – M4 – M5 – M6 -M8 – M10 – M11- M12 – M13 – M14 – M15 – M16 – M17 – M18 – M20 – M21 – M22 – M24 – M26 – M27 – M28 – M30 – M33 – M36 – M40
Type Bonded Seals, Usitringen, Multiseals : SC, US, USS, SES, SCR, BS, TT, TM,
Other type Usit rings / washers; Parker fitting seals; Stat-O-Seal, Thread Seal, UNC, UNF, 600, 610, 750, 800.
Manufacturers Bonded seal, Usit ring, Multiseal, Multi – Seal, Dowty seal, Dyna seal, Mega ring, usit ring, washer: Trelleborg (busak Shamban), Dowty, Parker, Dichtomatik, Eriks Merkel, NAK, NOK,
View and order all your Bonded Seals here!