0.275 in. Wide rib centrally located across the inside dia.
A deformable material which prevents the passage of matter through the joint formed when two faces are joined. It may be metallic or nonmetallic, lubricated or impregnated, solid or hollow cross section. It may be made to any predetermined dimension and shape. Excludes flat disks, items made of felt material and items having joints. For round metal and plastic items with an aperture and a solid rectangular cross section, see washer, flat; shim; bearing, washer, thrust; and spacer ring. Excludes disk, valve; seal, nonmetallic angle; seal, nonmetallic channel; seal, nonmetallic special shaped section; shielding gasket, electronic; and ring, sealing jar.
NSN 7035-00-079-7189
NSN 6610-00-317-5860
NSN 5930-01-263-1975
NSN 5925-00-400-4938
NSN 5996-00-591-2241
NSN 6110-01-358-5165
NSN 5925-00-832-8084
NSN 6620-01-365-1499
NSN 6645-00-283-6794
NSN 5996-00-518-0460
NSN 6610-01-468-0679
NSN 6145-01-476-8657