MRC:
A recording of the physical,functional,and performance characteristics for an item of supply.TEXT
General Description:
Steel, astm a-322 grade 4340, rockwell c 45-50 hardness, min yield strength 125000 psi, min tensile strength 140000 psi, o/a lg 16.120 in., o/a diameter 3.995 to 3.997 in., double helical grooves along lg on one in. Pitch 1.120 in. From ea end, 8 straight grooves, both ends chamfered 0.250 in. X 45 deg, 125 microinch finish o/a except 250 microinch finish at both ends and 32 microinch finish on diameter as noted, 2 external retaing rings incl 1 at ea end
