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 5999-00-997-9372
NSN 6610-01-246-7563
NSN 5925-01-246-4168
NSN 5975-01-394-5281
NSN 6150-01-101-3185
NSN 5915-00-518-1644
NSN 5895-00-691-6103
NSN 5910-00-080-1693
NSN 5905-01-564-4142
NSN 6685-01-397-0117
NSN 6650-00-336-0753
NSN 2925-00-480-9068