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 6150-01-339-9695
NSN 5990-01-352-5255
NSN 6220-00-528-7752
NSN 7035-01-123-0085
NSN 6150-01-280-8673
NSN 2925-01-094-4771
NSN 5945-01-031-7252
NSN 5935-01-311-4458
NSN 5910-01-481-0739
NSN 5960-01-584-9452
NSN 6650-01-578-4645
NSN 5996-01-234-9156