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 6220-01-111-9730
NSN 6135-00-995-1089
NSN 5855-00-361-0167
NSN 6650-01-580-9749
NSN 5996-01-029-2904
NSN 6685-01-129-2297
NSN 5895-01-514-0010
NSN 5925-00-418-3811
NSN 6650-01-202-8014
NSN 5895-01-269-1065
NSN 6320-01-365-2701
NSN 5905-01-094-1386