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 5965-01-361-4565
NSN 6240-01-144-2379
NSN 6135-01-022-5427
NSN 6130-01-128-3058
NSN 6240-00-010-1124
NSN 6620-01-346-9340
NSN 6320-00-513-8376
NSN 5975-01-082-0953
NSN 6685-00-925-4957
NSN 5996-01-055-2253
NSN 6650-01-570-4795
NSN 6645-00-930-9356