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 5910-00-379-2349
NSN 6145-01-360-9194
NSN 5835-01-213-0833
NSN 6130-01-379-9128
NSN 5935-01-334-3787
NSN 5975-01-188-7325
NSN 5999-00-947-2535
NSN 5895-01-282-5754
NSN 6145-01-477-0553
NSN 6220-00-816-8131
NSN 2925-01-027-1293
NSN 5920-01-326-7806