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 5960-01-338-3412
NSN 6620-00-836-0399
NSN 5960-01-431-4291
NSN 5910-01-089-7080
NSN 5910-01-357-6484
NSN 6685-01-481-2593
NSN 6620-01-243-5281
NSN 4140-01-132-0093
NSN 6110-01-333-0651
NSN 5910-01-329-6262
NSN 7035-00-230-4338
NSN 5895-01-615-8414