Brass, 1.188 square, all corners rounded, 0.562 in. High, shouldered 1.062 in. Dia, threaded 0.312 in. Deep, 0.938-16
NSN 5925-01-452-0042
NSN 5910-00-407-7620
NSN 5835-01-604-2279
NSN 5996-01-135-9848
NSN 6685-01-536-6391
NSN 5965-01-077-2124
NSN 5925-01-469-6667
NSN 6130-00-691-1202
NSN 5920-00-335-8967
NSN 5965-01-633-8849
NSN 5915-00-966-4661
NSN 6620-01-538-0061