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 5998-01-387-9670
NSN 5990-01-421-3325
NSN 5835-01-221-8811
NSN 5905-01-352-5824
NSN 5910-01-286-7016
NSN 7035-00-679-9027
NSN 4140-01-354-7907
NSN 6610-00-484-2662
NSN 7035-00-361-5975
NSN 5975-00-392-2016
NSN 5905-00-938-6911
NSN 5895-00-171-0412