Used on pump; oliver perry class ffg. 12.2mm hole diameter 18.3mm outside diameter 2.5mm material thickness M12 hi-collar lckwshr; spring steel; zinc or zinc w/ yellow chromate finish; special spring washer for socket head cap screws zinc or chromate zinc surface treated split helical-right hand
Used on pump; oliver perry class ffg. 2b thread class right-hand nut, hex, - (M12.1.75) hardened steel, property class 10; zinc plate or zinc yellow dichromate finish zinc or dichromate surface treated
Used on pump; oliver perry class ffg. 12.5mm hole diameter 20.5mm outside diameter 1.0mm material thickness washer, 12mm, internally tooth lock; spring steel; zinc plated zinc surface treated flat internal teeth