Used on pump, recipg-air; p/n sb3-a; board 400 ft wagb coast guard vessels. material compressed fiber; double connected circles with one bolt hole at each end
Used on pump, recipg.-air; p/n sb3-a; board 400 ft wagb coast guard vessels. material compressed fiber; oval rectangular shaped; no bolt holes; flanged oval
Used on engine, diesel; p/n 16-251-b stb; board 210 ft wmec class b coast guard vessels. material sht. pkg. spec 58310; abnormal shaped with squared off sides right