37 degrees surface shall be free of anodize and alodined per mil-c-5541, class 1a
A fitting that forms an angle of less than 180 degrees (3.141 radians) from a straight flow. Both connecting ends have machine threads (straight threads other than pipe or hose series) designed to accommodate a tube or is unthreaded and designed to accommodate a tube. It may have side or heel inlet(s). See also elbow, pipe and connector, multiple, fluid pressure line.
Classification: Threaded elbows and bends of iron or steel (other than cast iron or stainless steel) for pipes and tubes
NSN 6240-00-902-6554
NSN 5835-00-010-1614
NSN 5975-00-562-4914
NSN 2925-01-631-7004
NSN 5905-00-208-4104
NSN 5985-01-376-7455
NSN 6110-01-515-7202
NSN 6130-01-558-9072
NSN 5965-01-351-9673
NSN 5999-01-429-4077
NSN 6220-01-186-5676
NSN 5910-01-006-9820