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 5915-01-555-8081
NSN 5990-01-492-6575
NSN 5855-01-154-3871
NSN 6135-01-268-6726
NSN 6620-00-832-2556
NSN 6145-01-202-7772
NSN 6105-00-401-5379
NSN 6130-01-049-9024
NSN 6240-00-946-4900
NSN 6240-01-202-5649
NSN 6150-01-093-8297
NSN 6240-01-267-5490