ITEM NO.	LENGTH mm (inch)	I.D. mm (1/16") (inch)	O.D. mm (inch)
Black
F2A4B	63.5 (2.5)	6.4 (4) (.250)	25.4 (1)
F2A6B	63.5 (2.5)	9.5 (6) (.375)	25.4 (1)
F2A8B	63.5 (2.5)	12.7 (8) (.500)	25.4 (1)