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 5855-01-196-7082
NSN 6135-01-014-9755
NSN 5985-00-837-0000
NSN 5985-01-033-6100
NSN 5945-00-932-3335
NSN 5960-01-133-3551
NSN 6620-01-083-7796
NSN 5965-01-421-7273
NSN 6645-00-008-3944
NSN 6130-00-477-7219
NSN 6105-00-995-4528
NSN 5950-01-283-1407