50 durometer hardness rating
A metallic product of ferrous or nonferrous material. It is produced as a solid section in straight lengths or short barlike forms of cored or solid cross section. It may be round, square, hexagon, oval, half-oval, or half-round shape whose width, diameter, or distance between parallel faces is 3/8 inch or 10.0mm or greater. Rectangular shape cross-sectional dimensions are limited to those established in appendix c, fiig a131. It is round to a maximum diameter of 24 inches or 610.0mm. For a rectangular shape less than 3/32 inch or 2.5mm thickness, see wire (1), nonelectrical.
NSN 5960-01-041-3048
NSN 4140-00-555-3856
NSN 5950-01-630-7181
NSN 5998-00-205-4138
NSN 5996-01-376-1120
NSN 5835-01-514-5758
NSN 5985-01-561-9954
NSN 6130-01-365-7115
NSN 5930-01-487-3208
NSN 5999-01-453-3503
NSN 5998-00-633-5169
NSN 5935-00-284-6379