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 5925-01-513-1981
NSN 6105-01-250-2977
NSN 5920-01-013-8594
NSN 6105-00-205-0655
NSN 6130-01-025-9836
NSN 5996-01-386-4230
NSN 5925-00-190-0095
NSN 5895-01-351-5099
NSN 5930-01-416-1142
NSN 6130-01-107-0630
NSN 6650-00-168-1502
NSN 6105-00-446-4858