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 6145-00-043-0821
NSN 6145-00-482-9546
NSN 6650-01-444-1321
NSN 4140-01-170-8798
NSN 6110-00-188-9874
NSN 5998-01-420-2742
NSN 5945-01-584-8799
NSN 5920-01-359-3982
NSN 6645-00-729-9900
NSN 5945-01-209-0539
NSN 6610-01-388-0563
NSN 5935-01-389-6316