2b thread class right-hand flat countersunk undercut head style 32 thread quantity per inch furnished with .o. ring seal attached cadmium surface treated
3b thread class right-hand flat countersunk undercut head style 32 thread quantity per inch top surface of head, dark blue; o ring seal attached; rust inhibitor in threads cadmium surface treated
Used on aircraft, c-2a; aircraft, f-111; aircraft, hawkeye e-2c; aircraft, prowler ea-6b. 3b thread class right-hand flat countersunk undercut head style 32 thread quantity per inch o ring seal attached cadmium surface treated
Used on army space heater (ash), diesel, 120,000 btu/hr;485l tacs;aircraft, f-16;support equipment, b-1 aircraft. 3b thread class right-hand flat countersunk reverse keyed head style 20 thread quantity per inch cadmium surface treated
