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 6110-00-017-9946
NSN 5905-00-556-9253
NSN 5855-01-519-7929
NSN 5996-00-020-8907
NSN 5975-00-953-8822
NSN 6220-01-220-5260
NSN 5910-01-171-9405
NSN 5855-01-576-4223
NSN 6685-01-185-1246
NSN 5990-01-242-9653
NSN 6610-01-212-9817
NSN 6220-01-175-5518