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 5996-01-381-5313
NSN 6685-00-675-8271
NSN 5965-01-333-8560
NSN 6620-00-273-8735
NSN 5925-01-428-9332
NSN 6220-01-650-0974
NSN 6685-00-528-5175
NSN 5920-00-165-9160
NSN 7035-01-587-6239
NSN 6610-01-380-6374
NSN 5985-01-489-1253
NSN 5855-01-419-9429