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 5975-00-484-9339
NSN 5945-01-457-9831
NSN 6685-01-592-0709
NSN 5895-01-085-6168
NSN 6150-01-478-9862
NSN 5920-01-159-3791
NSN 6135-01-231-4809
NSN 5945-01-649-1372
NSN 6685-00-951-8492
NSN 5998-01-462-1237
NSN 6320-01-098-2503
NSN 5855-01-573-8397