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 5930-01-580-0888
NSN 6685-01-296-1848
NSN 5910-01-437-8914
NSN 5920-01-507-7159
NSN 5985-01-392-0612
NSN 6105-01-172-1231
NSN 5910-01-185-7182
NSN 5950-01-442-9335
NSN 6145-00-688-5697
NSN 6105-01-099-2837
NSN 5905-00-679-2821
NSN 2925-01-197-7864