A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5960-01-495-0859
NSN 5915-01-461-3552
NSN 6645-01-123-4443
NSN 6110-01-130-8038
NSN 5960-01-187-3103
NSN 6150-01-514-7370
NSN 5960-01-599-9821
NSN 5950-01-609-2306
NSN 5945-00-721-3457
NSN 5996-01-100-4361
NSN 6130-01-202-2494
NSN 5960-01-406-3672