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 5999-01-528-8699
NSN 5925-01-046-4918
NSN 7035-01-366-5912
NSN 5905-01-533-8155
NSN 6620-01-374-0592
NSN 6220-01-019-0505
NSN 5920-01-522-9286
NSN 7035-01-049-6776
NSN 6685-00-356-8451
NSN 6220-01-393-0908
NSN 6135-01-408-0313
NSN 6220-00-812-0515