Special Features:

As differentiated by contents.Item consists of seal ring and wire; gas check seal ring form from sheet; material is copper, soft commerical; 11.240 in.Outside dia; 10.741 in.Inside dia; 0.228 in.High; 0.050 in.Thick; seal ring is angled to 40 deg; gas check wire materil is pure lead, commerical; 11.149 in. Outside dia; 10.841 in.Inside diameter; 0.170 in.High; wire is angled to 40 deggas checks shall be delivered with lead wire assembled in copper ring; complete; for 16 inch projectile mk 13 mod 2 to 6 inclusive and mk 14 mod 0

Properties:

A metallic circular item assembled under pressure around the projectile to prevent propellant gases from entering the projectile.