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 5950-00-823-6199
NSN 4140-01-624-2199
NSN 5965-00-682-3567
NSN 5935-01-019-4539
NSN 7035-01-227-2546
NSN 7035-01-145-5059
NSN 5910-00-515-3586
NSN 5905-01-200-5175
NSN 5835-01-548-1143
NSN 7035-00-861-7913
NSN 5975-00-469-1443
NSN 6145-01-658-6995