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 5935-01-367-4548
NSN 6240-01-573-2489
NSN 5945-01-437-6240
NSN 5910-01-487-8165
NSN 5905-01-178-6217
NSN 5855-00-401-3442
NSN 5998-01-123-7971
NSN 6685-01-329-4837
NSN 5905-01-335-4878
NSN 6620-00-319-4044
NSN 5835-01-624-5666
NSN 6130-00-882-9330