Dowty Seals / British Bonded Seals
Dowty Seals, also known as British Bonded Seals, BSP Bonded Seals, or Bonded Washers, are available from Nuvair.com in a variety of BSP (British Standard Pipe) sizes: #4 BSP (1/4 in), #6 BSP (3/8 in), #8 BSP (1/2 in), #12 BSP (3/4 in), #16 BSP (1 in), and #20 BSP (1-1/4 in).