The Series 5302S Straight Female Heavy Duty DIN x Male BSPP hydraulic adapters, made from carbon steel with elastomeric seals, are designed for high-pressure hydraulic systems. They connect DIN Tube fittings (conforming to ISO 8434-1 / DIN 2353) with BSPP (British Standard Pipe Parallel) fittings. The DIN fitting has a 24° tapered throat on the male side, while the BSPP male fitting uses parallel threads to create a seal through metal-to-metal or metal-to-O-ring contact. BSPP connections, similar to NPT but not interchangeable, rely on thread compression to form a secure, leak-proof seal, and thread sealants are recommended for optimal performance. The thread sizes are identified by a "G" for parallel threads, such as BSPP 1/4-19, which is designated as G 1/4. These heavy-duty adapters provide reliable, high-performance sealing in demanding applications.