3 slots equally spaced 120 degrees apart on boss end
An item solid or split into halves, having a threaded or unthreaded hole for the purpose of connecting or retaining a pipe, tube, or hose fitting. The face of the flange may be smooth, grooved, or serrated and may be drilled for connecting bolts or studs. If the item is unthreaded, the pipe or tube may be retained by welding, brazing, compression, or the like. Excludes flange, pipe, blind; ferrule, grooved clamp coupling; and adapter (as modified).
Classification: Flanges of iron or nonalloy steel
NSN 6645-00-171-9639
NSN 5950-01-297-2830
NSN 5910-01-550-6825
NSN 5855-00-165-3093
NSN 6620-00-323-0031
NSN 6220-01-138-8532
NSN 6610-01-481-2644
NSN 6220-00-397-6910
NSN 6145-01-486-0457
NSN 5915-01-423-8561
NSN 6240-01-599-7633
NSN 5990-01-633-9503