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 5975-01-283-4085
NSN 6150-01-542-5159
NSN 6145-00-155-5297
NSN 5920-00-322-2122
NSN 5895-01-154-9125
NSN 6145-01-555-4409
NSN 6620-01-128-4462
NSN 5905-00-296-8382
NSN 6685-00-215-0548
NSN 6105-01-263-2248
NSN 5835-00-454-7239
NSN 6110-00-930-4818