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 5835-01-615-8864
NSN 5905-00-520-7931
NSN 5965-01-185-7354
NSN 6105-01-041-8698
NSN 7035-01-086-2922
NSN 4140-01-012-2460
NSN 6645-00-012-5834
NSN 5950-01-358-0856
NSN 5930-01-061-9246
NSN 6110-01-147-7214
NSN 6145-01-372-3585
NSN 5935-01-482-1160