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 2925-01-435-9057
NSN 5945-00-446-2867
NSN 6150-01-525-1693
NSN 6220-01-442-1912
NSN 7035-01-483-4194
NSN 5960-01-013-9346
NSN 6620-01-415-5803
NSN 5996-01-350-1077
NSN 5945-01-202-8119
NSN 5950-01-218-2144
NSN 5975-01-052-3489
NSN 5930-01-552-8719