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 5855-01-534-3724
NSN 5960-01-395-9834
NSN 6610-01-328-8098
NSN 5855-00-411-8688
NSN 5975-00-108-6464
NSN 5998-01-571-0146
NSN 6130-01-391-3464
NSN 6240-01-590-1347
NSN 6105-00-518-1854
NSN 5895-01-473-3314
NSN 5935-01-075-0223
NSN 2925-01-032-3814