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 6220-00-465-7553
NSN 6685-01-347-5281
NSN 6685-01-027-7061
NSN 6240-01-085-6576
NSN 6135-01-422-1440
NSN 6620-00-172-9222
NSN 5935-01-655-6481
NSN 6105-01-352-8112
NSN 5920-01-020-7659
NSN 6320-00-521-9350
NSN 6650-01-657-7864
NSN 5950-00-874-9108