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 6105-01-542-5312
NSN 6135-01-483-1501
NSN 6685-01-138-4033
NSN 6645-00-906-1769
NSN 5985-00-571-9092
NSN 5925-00-309-2404
NSN 5996-01-254-2510
NSN 6130-01-414-5369
NSN 6110-00-252-6480
NSN 6130-01-418-6984
NSN 6650-01-170-4397
NSN 6240-00-594-7138