Series 9920 Straight Male BSPP x Hose Barb hydraulic adapters, made from carbon steel, are designed to provide a secure connection between hydraulic systems and hoses. These adapters feature British Standard Pipe Parallel (BSPP) threads, which are similar to NPT but have a slightly different thread pitch and form. Sealing occurs through the distortion of the threads, often assisted by metal-to-metal angled surfaces or an O-ring. Thread sealants are recommended to ensure a secure connection. The male BSPP connection is similar to the American NPSM male, but with slight differences in thread pitch. Hose barbs, integrated into these adapters, are used to securely attach flexible hydraulic hoses. The barb design features ridges that grip the inside of the hose, ensuring a tight, leak-proof seal when the hose is clamped onto the adapter. BSPP thread sizes are typically expressed as fractional dimensions with “G” indicating a parallel thread.