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 5999-00-763-5601
NSN 5965-01-158-4187
NSN 6620-01-554-3987
NSN 7035-00-312-3055
NSN 5910-01-502-9833
NSN 6645-01-282-1928
NSN 5990-01-258-3848
NSN 5950-01-633-8636
NSN 6220-00-498-8098
NSN 5910-00-173-4871
NSN 5905-00-296-8382
NSN 7035-00-104-7613