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 5945-01-048-6234
NSN 6240-01-188-7282
NSN 6110-01-163-2070
NSN 6240-01-184-6831
NSN 6685-01-626-6660
NSN 5950-00-982-2815
NSN 6105-01-596-3746
NSN 6135-00-161-0746
NSN 5965-00-241-6424
NSN 5999-00-466-3226
NSN 5925-00-529-3950
NSN 5990-01-440-7135