Used on 5895-01-514-7015, communications interface system (cis) (v) 2. flush head style 18 thread quantity per inch knurled rivet nut nut dia is 0.530" ; head dia is 0.685" ; nut length is 0.805" ; nut is open ended; thread class is 2b chromate zinc surface treated
Used on 2540-01-522-3749 armor set, supplemental, small arms fragmentation protection. nylon-insert locking wing nut nylon 6/6 insert resists loosening caused by vibration; made of corrosion resistant die cast zinc alloy which is a good alternative to stainless steel; max. temp for nylon 6/6 insert is 250 degrees f; class 2b thread fit