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 6220-01-232-4744
NSN 5996-00-222-6049
NSN 6220-01-649-5291
NSN 4140-00-283-6843
NSN 5945-01-500-4960
NSN 6685-00-296-0392
NSN 6685-01-260-4307
NSN 6110-00-407-3013
NSN 6320-00-682-3448
NSN 5930-01-480-4015
NSN 6130-01-506-1084
NSN 2925-01-187-0423