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 7035-00-008-1809
NSN 5985-01-168-7516
NSN 6105-00-312-5724
NSN 7035-00-929-0363
NSN 5835-00-286-5432
NSN 5945-01-466-9214
NSN 5935-00-862-5158
NSN 5965-01-279-1075
NSN 6110-01-328-4781
NSN 6620-00-133-7903
NSN 6685-01-374-3191
NSN 5965-01-500-1840