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 6240-00-729-9696
NSN 6645-00-816-1707
NSN 5905-00-963-3959
NSN 6220-00-307-0580
NSN 5945-01-463-3569
NSN 5998-01-642-9155
NSN 5930-01-556-0663
NSN 6145-01-113-8205
NSN 6240-01-649-6937
NSN 5910-00-803-2395
NSN 5950-01-132-1618
NSN 6620-00-815-0124