3090CM,KNOB SMOOTH 1/4"-20 PHENOLIC
3090-D-1032-AL,ROUND SWAGE STANDOFFPLAIN ALUMIN
3090-D-1032-B,ROUND SWAGE STANDOFFPLAIN BRASS5
3090-D-1032-S,ROUND SWAGE STANDOFFPLAIN STEEL5
3090-D-1032-SS,ROUND SWAGE STANDOFFPLAIN STAINL
3090-D-440-AL,ROUND SWAGE STANDOFFPLAIN ALUMIN
3090-D-440-B,ROUND SWAGE STANDOFFPLAIN BRASS5
3090-D-440-S,ROUND SWAGE STANDOFFPLAIN STEEL5