NPT Stainless Steel Bulkhead Feedthrough Fitting 1/8" to 1/8" Female FNPT with Viton O-Ring, fit 1" Hole Through, up to 1" Thick. These high vacuum rated, stainless steel, corrosives resistant bulkhead feedthrough fittings have a Viton O-ring, and have 1/8" FNPT female national pipe threads on each side. These fittings fit a 1" hole through and can be used on bulkheads up to 1" thick. Stainless Steel 1" FNPT Bulkhead Feedthrough Data: Body Material: 304L Stainless Steel Seal: Viton O-Ring Ultimate Vacuum: 10-8 Torr (High Vacuum) Dimensions: A = 1.25" Max., B = 1.0", C = 1.75" Max., D = 1.875"

NPT Aluminum Bulkhead Feedthrough Fitting 1/8" to 1/8" Female FNPT with Viton O-Ring, fit 1" Hole Through, up to 1" Thick. These high vacuum rated aluminum bulkhead feedthrough fittings have a Viton O-ring and have 1/8" FNPT female national pipe threads on each side. These fittings fit a 1" hole through and can be used on bulkheads up to 1" thick. Aluminum 1" FNPT Bulkhead Feedthrough Fitting Data: Body Material: 6061-T6 Aluminum Seal: Viton O-Ring Ultimate Vacuum: 10-8 Torr (High Vacuum) Dimensions: A = 1.25" Max., B = 1.0", C = 1.75" Max., D = 1.875"