Used on fixed wing aircraft, c130j hercules, lockheed martin corp. 3a thread class right-hand flat countersunk head style 24 thread quantity per inch cadmium screw surface treated unjf thread series
Used on radar antenna, truck fl (m4k). 0.171" inside diameter 0.028" major thickness special ring style used with captive screw; material spec per mil-s-25043, ht cond h 1050 per mil-h-6875; surface treatment per qq-p-35, type 2, 7 or 8; outside diameter 0.266 in minimal passivate surface treated
3a thread class right-hand 24 thread quantity per inch screws to be self locking this locking element must be a non metallic patch in accordance with mil-f-18240 except that prevailing passivate surface treated unc thread series
3a thread class right-hand 32 thread quantity per inch dscrews to be self locking this locking element patch in accordance with mil-f-18240 except that prevailing passivate surface treated unc thread series
3a thread class right-hand 20 thread quantity per inch screws to be self locking this locking element must be a non metallic patch in accordance with mil-f-18240 except that prevailing zinc surface treated unc thread series
2a thread class right-hand 24 thread quantity per inch mscrews to be self-locking element must be a non metallic patch in accordance with mil-f-18240 except that prevailing zinc surface treated unc thread series
3a thread class right-hand 18 thread quantity per inch zinc screw surface treated mscrews to be self-locking element must be a non metallic patch in accordance with mil-f-18240 except that prevailing unc thread series
