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 5965-00-953-0072
NSN 5935-01-657-7631
NSN 5895-01-435-7558
NSN 4140-01-454-3869
NSN 5965-01-294-7522
NSN 6145-01-463-9683
NSN 7035-01-541-9818
NSN 5975-01-422-4710
NSN 6145-01-652-3996
NSN 2925-00-246-3077
NSN 5915-01-312-0530
NSN 5965-00-111-2073