By Harmsco
Part # 4661-14B
Manufacturer Code 635
OUTSIDE DIAMETER IS 16-1/2" HAS A CENTER HOLE AND 2 SETS OF SMALLER HOLES THIS IS THE TOP RUBBER SEAL USED ON BOTH THE ROUND RUBBER FLAT GASKET HARMSCO BF-168 & BF-252 CENTER HOLE IS 2-3/8" DIAMETER ..... INSIDE SET OF HOLES HAS A SET OF 10 HOLES SPACED EVENLY IN A CIRCLE AROUND OUTSIDE OF GASKET . HOLES ARE 1" DIAMETER, OUTSIDE EDGE OF EACH HOLE . IS 1-1/2" FROM OUTSIDE EDGE OF THE GASKET ..... INSIDE SET OF HOLES HAS A SET OF 4 HOLES. NOT EVENLY SPACED, THE HOLES FORM A RECTANGLE IF EACH HOLE IS USED AS THE CORNER OF THE RECTANGLE . HOLES ARE 1" IN DIAMETER, OUTSIDE EDGE OF EACH