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 5905-01-372-7108
NSN 6220-01-426-6922
NSN 5950-01-612-4525
NSN 5915-01-145-5340
NSN 6685-01-358-9968
NSN 5835-01-619-6268
NSN 5985-01-222-0039
NSN 5905-01-509-4571
NSN 5996-00-088-8891
NSN 5975-01-534-3024
NSN 6620-01-652-4349
NSN 5835-00-435-6638