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 6105-01-631-5039
NSN 5945-01-397-6292
NSN 5930-01-186-9386
NSN 5930-01-471-0862
NSN 6685-01-094-6334
NSN 6645-01-361-8947
NSN 5999-00-149-0624
NSN 6220-00-573-5747
NSN 6220-01-295-2022
NSN 6650-00-085-3846
NSN 6650-01-362-7214
NSN 6610-01-352-6344