Used on 50 vdc power supply cca(p/o 3/8ps1)communications system,an/trn-26. right-hand 0.500" thread length 40 thread quantity per inch screw, panel, captive, number 4-40 X1/2 inch unc thread series
Used on 1560-01-461-7342. flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style rivet, solid, countersunk 100 deg, precision head, titanium columbium alloy there is a chemical surface treatment per mil-c-5541, cl 1a, gold/yellow; top of head identification of an idented diamond
Used on deck assy,canopy. undersized oval countersunk head style rivet, solid, 100 deg, flush shear head, aluminum alloy raised dimple on top of head w/cross marking; finish is chemical conversion per mil-c-5541, cl 1a, yellow
Used on mk63 mod2 shield. 3a thread class 16 thread quantity per inch screw, cap, hex socket, button head thread class is 3a passivate surface treated unc thread series
3a thread class right-hand 0.323" thread length flat countersunk head style 0.375" grip length 32 thread quantity per inch passivate surface treated unjc thread series
3b thread class right-hand pan head style 36 thread quantity per inch stud assembly plus flush recess plug depth is 0.179 - 0.191"; internal threads cadmium fastener surface treated unf thread series
