DIN fitting was originally brought into line in the 1970s. It is an electrical connector, and its architecture has multiple pins under a protective circular sheath. Normally, a full-sized din connector contains three to 14 pins with a diameter of 13.2 millimetres. The term din connector doesn't refer to a specific cable. Instead, it requires all the connectors that meet the din standard. The circular connector is another name for din connector in computer electronics. It's also used for a digital interface such as musical instrument digital interfaces MIDI.
SAE adapters are sometimes used in power sports applications and automobiles and provide an easy way to connect different equipment. Generally, the adapters are designed to achieve minimal power loss and maximum current flow. One form of SAE adapter is quite common in cars and helps you light up your smoke.
BSPP and BSPT adapters are similar to NPT except for one important difference. The angle across the flanks of threads (if you sliced the fitting in half long-ways and measured the angle from root to crest to root) is 55 degrees instead of 60 degrees as it is for NPT. Thus an NPT male will fit into a BSPT fitting or vice versa but they will not seal. This is a popular fitting in China and Japan but is very rarely used in North America unless the equipment to which it is attached was imported. Thread sealant is needed to seal the male and female fitting together. Instruments have adapters to both male BSPT adapters and female BSPT adapters.
O-ring face seal (ORFS) fittings are a highly popular and reliable choice in hydraulic and tube connections. Well designed ORFS fitting provides a seal that is highly reliable due to its elastomeric seal and is one of the best choices for a leak-free connection.
JIC fitting is common in most fluid power systems. Both male and female components have 37 degree seats.