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 6685-01-655-9599
NSN 6110-00-422-4973
NSN 2925-00-816-8765
NSN 5999-01-656-8079
NSN 5965-00-333-3359
NSN 5935-01-568-5502
NSN 6645-01-042-4220
NSN 5905-01-224-5617
NSN 6320-01-021-6633
NSN 5990-00-728-4539
NSN 7035-00-470-4977
NSN 5905-00-351-8087