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 5905-01-523-4662
NSN 5965-01-217-7167
NSN 5950-00-624-2934
NSN 5998-01-437-7196
NSN 5905-01-337-6958
NSN 5945-01-522-6370
NSN 5930-01-456-8891
NSN 5910-01-472-3128
NSN 5905-01-080-0662
NSN 6685-01-024-9922
NSN 6620-00-072-1927
NSN 5998-01-453-7857