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 6320-00-313-9114
NSN 5930-01-454-8920
NSN 5835-01-378-6804
NSN 5915-01-334-2663
NSN 6685-00-148-4847
NSN 5990-01-400-3299
NSN 5855-01-529-7260
NSN 6610-01-269-5437
NSN 5915-01-624-0645
NSN 7035-00-283-3112
NSN 5905-01-586-5320
NSN 6685-01-195-3360