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 6320-01-177-3192
NSN 5945-01-416-9259
NSN 7035-01-617-2861
NSN 5910-00-057-6168
NSN 5935-01-609-4653
NSN 6150-01-442-8894
NSN 5935-01-421-6045
NSN 2925-01-574-0273
NSN 5975-01-461-2793
NSN 5960-00-126-1654
NSN 5855-01-448-6138
NSN 6685-00-247-3770