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 5925-01-284-4215
NSN 5945-00-081-3182
NSN 6130-00-470-7825
NSN 5895-01-222-2614
NSN 5915-01-024-8200
NSN 5999-00-016-9567
NSN 5945-01-123-9006
NSN 6105-01-643-1465
NSN 5930-01-292-5588
NSN 5835-01-615-4766
NSN 6685-00-981-7812
NSN 5905-00-661-2395