(Naut.) A line or band used to lash a furled sail securely. Sea gaskets are common lines; harbor gaskets are plaited and decorated lines or bands. Called also casket.
2.
(Mech.)
(a)
The plaited hemp used for packing a piston, as of the steam engine and its pumps.
(b)
Any ring or washer of made of a compressible material, used to make joints impermeable to fluids.
