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 5855-01-053-9684
NSN 6685-01-522-4585
NSN 6105-01-234-6611
NSN 5935-00-868-8700
NSN 5915-01-514-8100
NSN 2925-01-606-3201
NSN 5915-00-237-6183
NSN 5999-00-368-0461
NSN 6620-01-109-2764
NSN 6610-01-305-4473
NSN 6145-01-255-8700
NSN 5895-01-602-9390