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 2925-01-371-6853
NSN 6220-00-941-4007
NSN 5960-01-550-2782
NSN 5915-01-575-7317
NSN 5998-01-325-3176
NSN 6685-01-241-9977
NSN 7035-01-618-1438
NSN 5950-01-169-4657
NSN 5999-01-142-2608
NSN 5925-01-599-5431
NSN 7035-01-105-0191
NSN 5950-01-415-5150