Front ferrule
A ring-shaped item whose outer surface is so shaped as to form a seat for the coupling nut and the fitting between which it is assembled. It is designed to be slipped over tubing or hose so that tightening of the coupling nut to the fitting compresses the sleeve against the circumference of the tubing or hose thereby effecting a tight seal between the tubing, or hose fitting and coupling nut.
NSN 6240-00-421-1862
NSN 5999-00-027-1739
NSN 6610-01-416-2738
NSN 5999-00-133-5393
NSN 5950-01-094-2517
NSN 6610-01-553-1317
NSN 5975-01-292-2293
NSN 5905-01-145-7337
NSN 5960-01-254-3541
NSN 5935-00-705-7031
NSN 7035-01-448-0716
NSN 5910-01-324-9752