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 2925-01-552-3806
NSN 5920-01-214-8430
NSN 6130-00-352-2317
NSN 6145-00-758-9884
NSN 5935-01-088-6808
NSN 6620-01-013-5432
NSN 7035-00-517-8232
NSN 5855-01-628-2757
NSN 7035-00-267-5424
NSN 6685-01-530-6612
NSN 7035-00-803-3056
NSN 5998-00-359-1981