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 7035-01-116-6223
NSN 5965-00-096-7370
NSN 6685-00-316-1157
NSN 5910-01-287-9194
NSN 6620-00-713-7548
NSN 5975-01-413-5239
NSN 6620-01-112-6440
NSN 5950-00-246-8717
NSN 6220-00-928-9356
NSN 5935-00-520-3463
NSN 6620-00-049-5074
NSN 5998-01-324-9194