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 6135-01-059-4055
NSN 7035-01-260-9543
NSN 6150-01-167-3890
NSN 5999-01-441-6687
NSN 6620-01-464-3087
NSN 6685-01-444-1496
NSN 6145-01-218-4097
NSN 7035-01-132-2917
NSN 5990-01-400-3299
NSN 5945-01-022-9695
NSN 5998-00-946-2593
NSN 6645-00-033-8714