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 6220-00-276-2785
NSN 6145-01-211-2417
NSN 6610-01-212-2969
NSN 5855-01-364-4478
NSN 5996-01-398-1632
NSN 5975-00-189-0857
NSN 7035-00-585-2113
NSN 5985-01-452-0383
NSN 5945-01-439-3331
NSN 5999-00-764-0482
NSN 5920-00-905-1831
NSN 5895-01-502-6601