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 5945-01-242-7552
NSN 6105-00-500-4999
NSN 6105-01-146-5335
NSN 6610-01-314-7964
NSN 6650-01-193-5911
NSN 5920-01-418-9012
NSN 5975-01-585-9837
NSN 5975-01-422-2904
NSN 6110-00-851-3044
NSN 6685-01-401-5360
NSN 6320-00-725-0754
NSN 6130-01-036-6995