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 6240-01-487-5182
NSN 5895-00-925-1198
NSN 6135-01-515-9626
NSN 5905-01-428-1656
NSN 6130-00-104-8196
NSN 7035-00-929-0363
NSN 6150-01-053-6289
NSN 5895-01-463-8678
NSN 5855-00-763-2155
NSN 4140-01-442-1670
NSN 5975-01-218-3824
NSN 6145-01-138-2137