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 6645-00-466-0685
NSN 5945-01-297-7349
NSN 5895-00-391-4951
NSN 6620-00-280-2874
NSN 5910-00-327-4458
NSN 5835-00-876-2554
NSN 5990-01-660-8221
NSN 6145-00-570-0516
NSN 5895-01-123-9027
NSN 6130-00-575-9721
NSN 6610-00-273-3016
NSN 6240-01-534-5829