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 5990-00-159-1774
NSN 6685-01-016-6251
NSN 5990-01-179-5625
NSN 5990-00-636-4218
NSN 7035-01-569-4269
NSN 6240-00-195-6308
NSN 5975-00-370-0401
NSN 6105-01-180-5013
NSN 5960-01-425-1454
NSN 7035-01-422-6850
NSN 2925-01-580-2993
NSN 5975-00-246-4906