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 6130-00-084-7356
NSN 5999-01-332-2879
NSN 5920-01-468-1026
NSN 6110-01-457-5822
NSN 4140-00-885-5958
NSN 5990-01-152-3974
NSN 6620-00-810-6774
NSN 5999-00-010-8307
NSN 6620-00-900-3986
NSN 5996-01-093-1944
NSN 5985-00-067-9642
NSN 4140-01-350-4724