Used on w/s: aircraft, b-1b; support equipment (se), b-2 bomber; aircraft, b-2 bomber (atb). flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.500" grip length passivate stem surface treated
universal head style 0.563" grip length "ns" letters after the material code "b" indicate no preference to lock type (may be visible or internal) . rivets with no letter code (indicating visible lock type) chromate sleeve surface treated
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.906" grip length 95000 single pounds per square inch shear strength color green on locking collar passivate surface treated
hexagon head style 0.220" grip length complete top surface of head of nut shall be powder blasted to produce a surface finish of ra 50/80 micro" after all manufacturing operations passivate sleeve surface treated
hexagon head style 0.282" grip length complete top surface of head of nut shall be powder blasted to produce a surface finish of ra 50/80 micro" after all manufacturing operations passivate sleeve surface treated
hexagon head style 0.345" grip length complete top surface of head of nut shall be powder blasted to produce a surface finish of ra 50/80 micro" after all manufacturing operations passivate sleeve surface treated
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 1.930" grip length furnished with steel drive nut, color gray, corrosion resistant coating. complete top surface of head of nut shall be powder blasted passivate sleeve surface treated
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.157" grip length powder blast top surface of head, remainder of body optional passivate sleeve surface treated
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.470" grip length powder blast top surface of head, remainder of body optional passivate sleeve surface treated
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.562" grip length powder blast top surface of head, remainder of body optional passivate sleeve surface treated