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 5925-01-439-4552
NSN 6650-01-230-3032
NSN 5855-01-205-7030
NSN 6150-01-449-1841
NSN 5990-01-421-5342
NSN 6685-01-425-1191
NSN 7035-00-200-5162
NSN 6150-01-253-1859
NSN 2925-00-720-3948
NSN 5935-01-475-6391
NSN 6150-01-451-6761
NSN 6685-00-735-2381