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 5925-01-383-6992
NSN 6130-00-354-9851
NSN 5990-01-626-3840
NSN 6685-00-804-5656
NSN 6110-01-220-5888
NSN 6645-01-370-7380
NSN 5855-01-270-6847
NSN 5920-01-616-7669
NSN 5996-01-068-9103
NSN 5925-01-207-1403
NSN 6145-00-643-4962
NSN 5915-01-497-2821