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 5930-00-804-9397
NSN 5935-01-266-9977
NSN 6105-01-588-7781
NSN 6645-00-860-6967
NSN 5965-00-194-9875
NSN 5905-01-333-3635
NSN 5998-01-315-5688
NSN 5985-00-089-8390
NSN 5895-01-315-1880
NSN 5990-01-382-5364
NSN 6220-01-044-3378
NSN 6105-01-625-7409