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 5996-01-628-4657
NSN 6650-01-202-8014
NSN 5996-00-497-3809
NSN 5935-00-925-1916
NSN 6685-01-067-8474
NSN 5925-01-127-6001
NSN 6685-00-831-2740
NSN 6110-01-633-9660
NSN 6610-01-451-3877
NSN 6620-01-562-8816
NSN 6645-01-650-5735
NSN 5965-01-303-1676