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 6685-01-059-1769
NSN 5950-01-301-1497
NSN 6320-01-365-2701
NSN 5895-00-977-7508
NSN 6620-00-816-8240
NSN 5895-00-199-4964
NSN 5990-00-067-6791
NSN 5925-01-385-1899
NSN 5915-00-192-3109
NSN 6130-01-359-0016
NSN 2925-01-448-2880
NSN 5975-01-274-3318