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 6105-00-186-9380
NSN 5905-00-518-8093
NSN 5960-00-848-1900
NSN 5985-01-378-6200
NSN 5855-00-361-0167
NSN 6320-00-908-6841
NSN 5935-00-110-0784
NSN 4140-01-025-4911
NSN 5960-01-297-0696
NSN 5950-01-436-1517
NSN 5895-01-390-0527
NSN 5935-00-203-5852