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 6220-01-196-8087
NSN 6685-01-406-2919
NSN 5905-01-170-6573
NSN 5910-01-391-7180
NSN 6150-01-439-5394
NSN 5960-01-054-3752
NSN 6110-00-663-4054
NSN 6610-01-392-0231
NSN 5910-01-043-3445
NSN 7035-01-364-0286
NSN 5905-01-235-8304
NSN 6130-01-502-0379