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 5905-01-091-5940
NSN 5975-01-079-2544
NSN 6620-01-515-9597
NSN 5895-01-133-3585
NSN 6105-01-442-3465
NSN 6650-01-037-7637
NSN 5990-01-651-0170
NSN 6685-01-559-9079
NSN 6105-00-816-9397
NSN 5910-01-310-8533
NSN 6620-00-053-9568
NSN 5920-01-129-9724