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 5965-01-416-8138
NSN 6685-01-354-7618
NSN 5920-00-931-7979
NSN 2925-01-583-5619
NSN 6645-01-054-3969
NSN 5910-00-470-7883
NSN 6685-00-448-1235
NSN 5910-00-910-8241
NSN 5998-01-655-1997
NSN 5925-01-392-1112
NSN 5975-01-460-5694
NSN 5965-01-348-8761