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 5855-01-274-5311
NSN 6130-01-359-5032
NSN 6145-01-183-0958
NSN 6685-00-369-6912
NSN 6105-01-585-6137
NSN 6130-01-089-2879
NSN 6220-01-380-7148
NSN 6320-01-160-7757
NSN 6150-01-111-7786
NSN 6685-01-176-6869
NSN 5905-00-009-5171
NSN 5945-01-555-8373