Used on center, aft, vertical. 3a thread class straight pan head style 0.375" grip length 24 thread quantity per inch pin-rivet threaded passivate surface treated unjf thread series
Used on f/a-18e/f aircraft. flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style rivet has indented diamond on head with a 0.030 to 0.050 inch width
2a thread class right-hand 0.312" thread length undercut pan no. 2 head style 40 thread quantity per inch passivate screw surface treated material is steel 300 series unc thread series
Used on dcn 185. 3a thread class right-hand 1.500" thread length flat countersunk head style 24 thread quantity per inch cadmium surface treated unf thread series
Used on center, aft, vertical f/a-18e model code support ecp 6038. flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style MS20426 has been replaced by NASM20426 dated august 18, 1998. anodize surface treated
Used on F/A-18. 3a thread class right-hand 0.345" thread length flat countersunk head style 1.250" grip length 32 thread quantity per inch screw, close tolerance passivate surface treated unjf thread series
3a thread class right-hand 0.453" thread length dished hexagon head style 0.188" grip length 0.453 thread quantity per inch navy special project unjf thread series
Used on fighter aircraft-first (f18 e/f). 1.380" overall width navy) : grommet; also know as grommet-conductive & non-conductive having an off-center rectangular aperature & a circular hole next to the rectangular aperature
Used on 1520013558250. 3a thread class right-hand 1.153" thread length flat countersunk head style 24 thread quantity per inch cadmium screw surface treated unjf thread series
2a thread class right-hand 2.250" thread length flat fillister head style 28 thread quantity per inch altered item drawing make from MS90727-15 unf thread series
Used on 2320-01-491-3436. 2a thread class right-hand 0.750" thread length hexagon head style 20 thread quantity per inch zinc surface treated unc thread series
