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 5925-00-655-4345
NSN 6685-00-513-4971
NSN 6105-00-755-7087
NSN 5960-01-453-6170
NSN 5975-01-314-5601
NSN 6650-01-554-8571
NSN 6130-00-113-4558
NSN 6610-01-555-8596
NSN 6650-00-925-1274
NSN 7035-01-132-7209
NSN 6620-01-076-1340
NSN 5935-01-395-7049