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 5905-00-457-2433
NSN 5930-01-181-6628
NSN 7035-01-491-7782
NSN 2925-01-359-4027
NSN 5999-01-213-3561
NSN 6130-01-397-7178
NSN 5905-01-425-3259
NSN 5965-00-997-5764
NSN 7035-01-506-9957
NSN 6130-01-287-9841
NSN 5855-01-272-1504
NSN 6150-01-010-3400