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 5920-01-141-6885
NSN 6645-00-614-5302
NSN 5920-00-432-6684
NSN 5965-00-391-0562
NSN 5998-00-719-7610
NSN 7035-01-548-9579
NSN 6610-01-644-2546
NSN 5965-01-308-2261
NSN 6685-01-130-3471
NSN 5910-01-327-9280
NSN 5975-00-780-0792
NSN 6105-01-362-0548