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 5960-00-533-1125
NSN 6130-01-309-5722
NSN 5905-00-305-0172
NSN 5910-01-323-7086
NSN 5965-01-253-5353
NSN 7035-01-333-9298
NSN 6105-00-906-3491
NSN 6220-01-585-8375
NSN 5895-01-512-9304
NSN 5960-01-006-8469
NSN 6130-01-220-5264
NSN 4140-00-669-6109