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 5905-01-400-5968
NSN 5985-01-592-2054
NSN 6645-01-495-0939
NSN 5950-01-362-7514
NSN 5920-01-510-3933
NSN 6220-00-202-8591
NSN 6130-01-249-2539
NSN 6685-00-650-5491
NSN 6105-01-392-7294
NSN 5915-01-059-9805
NSN 5915-01-207-0868
NSN 5905-01-547-5721