A two-piece seal, consisting of a piston ring and an expander, which prevents oil transfer between the rod end of the cylinder and the cap end. The piston seal is usually made of Teflon, with nylon available for pressure greater than 3000 psi (20,670 kpa). The various shaped expanders are nitrile.
Groove Diameter - B (+/- 0.0762 mm) (mm): 120.02 Bore Diameter (mm): 139.70 Seal Shape: Type 1 Groove Width - A (+/- 0.0508 mm) (mm): 9.63
WHEEL TRACTOR 627 621 623 627B 627G 627E 623B 627F 623G 623E 623F 621B 621E 621F 621G HYDRAULIC CONTROL 143 141 140 TRACK LOADER 973C 977H 977K 963 973 955H 955K 955L 953 WHEEL DOZER 824B 824C LANDFILL COMPACTOR 826C MOTOR GRADER 16 12F 12E 16G 14G 14E WHEEL LOADER G926 936E 936F 926 980B 992B 936 980 926E 966C G936 988 950 992 TRACK-TYPE TRACTOR D4D D4E D6R D6R II ARTICULATED TRUCK D400E D25D D350E D30D RIPPER 963 953 951 955 4 943 TRUCK 773 WHEEL SCRAPER 615 615C 621E EXCAVATOR 225 BULLDOZER 4S 824S 955 977A 4A 8A