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 5910-01-393-3338
NSN 5985-00-176-1499
NSN 5998-01-025-6624
NSN 6135-01-507-1135
NSN 5930-00-360-1967
NSN 5999-01-341-2363
NSN 5950-01-133-9577
NSN 5950-01-037-5601
NSN 6110-01-221-1977
NSN 6610-01-024-0675
NSN 5905-00-726-2845
NSN 5950-00-476-2198