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 6145-01-107-6135
NSN 5835-00-405-1099
NSN 5945-01-338-8593
NSN 5990-01-059-0947
NSN 5950-00-231-6204
NSN 5950-01-085-1977
NSN 5945-01-369-0183
NSN 6320-00-242-3300
NSN 6685-00-728-4744
NSN 5998-01-603-0632
NSN 5910-00-372-4555
NSN 5985-01-074-4194