Series SS9015 Straight Male BSPP x Female BSPP adapters are swivel-style connectors made from stainless steel, designed for use in fluid power systems. These adapters feature British Standard Pipe Parallel (BSPP) threads, which are similar to NPT but have a different thread pitch and form, making them non-interchangeable. The male BSPP connector has a straight thread, while the female BSPP side features a swivel design with a tapered nose flareless swivel that seals against the cone seat of the male connector. The seal is created through a metal-to-metal connection or by combining metal and an O-ring. Thread sealant is recommended for ensuring a secure connection. BSPP thread sizes are identified by the letter "G" for parallel threads, such as BSPP 1/4-19 being designated as G 1/4. These high-quality adapters offer reliable and durable sealing for hydraulic applications where leak prevention is crucial.