3a thread class right-hand 4.875" thread length hexagon head style 13 thread quantity per inch undercut beneath bearing surface of head dia 0.475", width 0.031", at a distance of 1.724" from bearing surface item is grooved 0.219" wide by 0.031 to 0.036" in depth, between these two points the dia has been machined to a dia of 0.490 to 0.495" unc thread series
Used on semitrailer,tank: 5000 gallon,bulk haul,self load/unload m967; "pumpassembly installation,m967,m967a1,m969,m969a1; tm 9-2330-356-34p,dated oct 80.
