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 6620-01-246-4314
NSN 5855-01-385-8846
NSN 6685-01-514-7393
NSN 5965-00-400-6228
NSN 5925-01-569-1385
NSN 6620-00-908-7497
NSN 5905-00-558-4771
NSN 2925-00-265-7539
NSN 6610-01-605-1161
NSN 5920-00-962-0431
NSN 6320-01-578-6006
NSN 4140-01-323-4279