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 6685-01-268-5017
NSN 6645-01-462-3754
NSN 6320-01-612-7035
NSN 5925-01-206-4330
NSN 6240-00-391-6402
NSN 6105-00-006-2087
NSN 5996-01-412-4393
NSN 5905-00-133-2959
NSN 5925-01-111-4509
NSN 5975-00-081-2171
NSN 6220-01-517-5606
NSN 6240-01-356-1170