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 5999-01-371-6564
NSN 2925-00-774-8247
NSN 5925-01-216-0287
NSN 6645-01-377-2553
NSN 5920-01-319-6790
NSN 5985-01-639-8150
NSN 5975-00-189-9949
NSN 5999-01-304-3345
NSN 6105-01-175-3412
NSN 5975-01-360-1776
NSN 5999-01-348-5717
NSN 5925-00-258-9814