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 7035-01-204-9609
NSN 5990-01-392-5682
NSN 5930-01-339-7836
NSN 6685-00-763-8706
NSN 6110-01-295-9547
NSN 5855-01-224-7975
NSN 6150-01-328-8604
NSN 5855-01-010-4921
NSN 5999-01-012-2449
NSN 5990-00-548-6163
NSN 5910-01-657-9795
NSN 6105-00-939-1484