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 5965-00-253-1302
NSN 6220-01-126-3586
NSN 5855-01-513-9601
NSN 5835-00-946-2656
NSN 5999-01-123-8409
NSN 5935-00-203-4889
NSN 6150-00-548-3228
NSN 7035-01-522-5597
NSN 5999-01-487-6700
NSN 5965-01-497-5961
NSN 5985-01-318-0410
NSN 5998-01-442-0889