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 5855-01-623-6879
NSN 6130-01-505-1328
NSN 5935-01-490-7743
NSN 5910-01-010-4058
NSN 5895-01-337-3140
NSN 5855-01-149-4110
NSN 5990-01-123-6557
NSN 6320-01-309-9595
NSN 6685-01-239-4182
NSN 5930-00-840-8125
NSN 5965-01-338-7693
NSN 5905-01-095-7920