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 5998-00-099-9406
NSN 5855-01-634-0259
NSN 5996-01-354-2833
NSN 5910-00-109-0680
NSN 5935-01-235-7490
NSN 6685-00-887-3441
NSN 5905-01-642-7770
NSN 5925-00-248-5734
NSN 6110-01-335-3541
NSN 5999-00-378-5595
NSN 5925-00-005-3176
NSN 5915-01-420-9537