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 5855-01-529-6369
NSN 6105-00-138-9265
NSN 5950-01-447-9101
NSN 6240-00-201-9011
NSN 5925-01-178-8962
NSN 5965-01-654-7451
NSN 5960-01-192-3128
NSN 6150-01-095-4581
NSN 5930-01-307-4501
NSN 5855-01-304-3064
NSN 6685-00-141-4300
NSN 5999-01-463-5106