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 5895-00-966-5573
NSN 5965-01-020-4104
NSN 6645-01-527-2914
NSN 6130-01-348-1807
NSN 7035-01-501-9118
NSN 6135-01-579-3534
NSN 7035-01-487-6481
NSN 5965-00-396-3411
NSN 5990-01-460-6390
NSN 6105-01-467-8915
NSN 5996-01-013-0432
NSN 6645-00-077-1805