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 5950-01-179-1025
NSN 6220-01-027-8560
NSN 6685-01-040-5752
NSN 6105-01-512-2756
NSN 5935-01-218-2483
NSN 5895-00-740-7461
NSN 5999-01-615-3706
NSN 6145-00-470-1606
NSN 5915-01-248-8581
NSN 5905-01-650-1003
NSN 5895-00-875-8308
NSN 5975-01-285-1792