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 5910-01-616-0611
NSN 6135-00-120-1034
NSN 5935-01-050-9171
NSN 5905-00-935-8597
NSN 6320-01-160-8578
NSN 6685-00-513-9462
NSN 6110-01-188-6026
NSN 6145-01-494-3224
NSN 6645-00-204-4100
NSN 5910-01-031-0770
NSN 5999-01-168-1670
NSN 6650-00-396-2240