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 5935-00-462-0383
NSN 6105-01-594-9105
NSN 5975-01-008-5319
NSN 5910-00-973-7808
NSN 5855-01-363-6012
NSN 5930-01-152-2621
NSN 5960-00-140-1600
NSN 6645-01-091-7289
NSN 6645-01-532-3172
NSN 5895-01-186-4368
NSN 5935-00-181-8672
NSN 5925-00-003-4722