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 6610-01-083-1446
NSN 4140-01-202-9563
NSN 4140-01-364-7845
NSN 5990-01-416-0362
NSN 5895-01-535-8392
NSN 6620-00-067-4946
NSN 5975-01-391-7127
NSN 5945-01-605-4001
NSN 4140-01-629-5629
NSN 6320-01-039-5891
NSN 5905-01-410-7780
NSN 5985-01-264-5467