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 5915-00-243-2030
NSN 5935-01-608-5037
NSN 6145-01-214-0017
NSN 6105-01-630-2239
NSN 6220-01-413-4164
NSN 7035-00-173-2281
NSN 6685-01-229-0866
NSN 4140-00-497-3416
NSN 6135-01-180-4588
NSN 6610-01-473-1843
NSN 5990-00-033-8128
NSN 6145-00-186-6291