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 5996-01-431-5111
NSN 6220-01-142-3148
NSN 6220-01-634-0660
NSN 4140-01-608-7877
NSN 5915-00-122-4849
NSN 6645-01-370-5264
NSN 5999-01-092-0836
NSN 6620-00-452-5738
NSN 6610-01-472-2757
NSN 5950-01-415-5150
NSN 5999-00-801-3394
NSN 5965-01-508-9695