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 6150-00-927-1084
NSN 5925-00-850-1447
NSN 6110-01-198-3099
NSN 7035-01-202-9250
NSN 6685-01-521-2476
NSN 6110-00-676-7613
NSN 5945-01-039-2129
NSN 5945-00-076-4230
NSN 5895-00-322-4899
NSN 6130-01-275-2174
NSN 5915-00-537-2339
NSN 5930-01-114-1081