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 7035-01-202-8172
NSN 6610-01-136-4866
NSN 5910-00-331-8443
NSN 5895-01-107-0367
NSN 6150-01-334-3016
NSN 6685-01-406-0601
NSN 5915-01-105-0965
NSN 5855-00-221-9435
NSN 2925-00-814-8745
NSN 5999-00-073-2277
NSN 6145-01-075-8265
NSN 4140-01-552-1885