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 5920-01-399-8740
NSN 5996-01-522-2830
NSN 6685-01-522-3526
NSN 7035-01-138-1223
NSN 6150-01-451-4564
NSN 6645-01-035-3787
NSN 6130-01-634-0603
NSN 5855-01-491-0140
NSN 6620-01-370-6829
NSN 5915-01-555-8852
NSN 6620-01-377-0414
NSN 6150-01-026-9450