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 5895-01-341-2069
NSN 6110-01-005-2191
NSN 6110-01-394-4163
NSN 5960-01-346-6002
NSN 6685-00-274-3882
NSN 6150-00-171-9455
NSN 6610-01-604-1744
NSN 5910-01-111-2778
NSN 6320-01-426-8947
NSN 6645-00-171-9251
NSN 5999-01-386-3616
NSN 6105-01-492-5723