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 5925-01-032-3461
NSN 6620-00-151-5363
NSN 6130-00-188-3709
NSN 6130-00-269-8273
NSN 6135-01-386-1452
NSN 5985-01-370-4978
NSN 5895-00-340-3297
NSN 6135-01-534-3007
NSN 7035-01-106-3476
NSN 6320-00-521-9350
NSN 6110-00-088-8269
NSN 4140-01-400-3610