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 6610-01-247-1798
NSN 5999-00-925-1146
NSN 6685-01-323-7840
NSN 6685-00-989-6921
NSN 5945-01-622-1542
NSN 6220-01-488-3927
NSN 6610-01-415-5877
NSN 6620-00-132-1151
NSN 5998-01-094-1310
NSN 5855-01-554-5794
NSN 5910-01-301-3219
NSN 5925-01-185-1390