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 7035-01-649-6063
NSN 5895-01-153-1486
NSN 5990-00-759-3423
NSN 6110-01-633-9660
NSN 5895-01-512-2023
NSN 6645-01-352-5675
NSN 4140-00-231-1475
NSN 5930-01-184-1192
NSN 6685-01-634-0611
NSN 5855-01-091-2273
NSN 5910-00-120-1692
NSN 5905-00-242-1987