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 6105-00-859-4786
NSN 5920-01-391-9008
NSN 6645-01-375-2020
NSN 5998-00-364-3665
NSN 5965-01-063-7894
NSN 5925-00-121-7698
NSN 5998-01-329-6803
NSN 5975-01-409-0564
NSN 6685-01-139-0270
NSN 5935-00-578-0239
NSN 6620-01-583-8155
NSN 6220-00-505-1599