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 5930-00-919-7096
NSN 6135-01-167-7604
NSN 6240-01-377-5503
NSN 5920-00-836-6983
NSN 6130-01-316-4791
NSN 7035-01-423-1755
NSN 5895-01-472-4128
NSN 7035-01-364-8454
NSN 5975-01-233-3244
NSN 6105-01-399-8125
NSN 5996-01-027-0702
NSN 6145-01-234-7680