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 5910-01-246-4138
NSN 5996-00-983-7884
NSN 7035-01-445-3563
NSN 5910-00-913-7602
NSN 6645-01-255-0391
NSN 6145-01-399-3871
NSN 5855-01-318-7663
NSN 5930-01-063-7169
NSN 7035-01-013-9889
NSN 6685-01-071-0211
NSN 6110-01-099-4334
NSN 5915-01-142-7830