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 7035-00-585-2113
NSN 6145-01-367-1404
NSN 5855-00-925-0114
NSN 6130-01-526-2645
NSN 5930-01-473-2395
NSN 5915-00-603-7182
NSN 5965-00-015-7408
NSN 4140-01-186-3977
NSN 5950-00-500-4198
NSN 5905-01-316-4337
NSN 6220-00-487-4424
NSN 5945-00-703-8576