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 6610-00-962-3723
NSN 6650-01-236-3817
NSN 6135-01-236-8603
NSN 5905-01-551-1275
NSN 6130-01-076-9331
NSN 5996-01-624-3209
NSN 6150-01-310-3491
NSN 5930-01-157-8917
NSN 5999-01-386-6288
NSN 6135-01-338-8969
NSN 6110-00-771-4538
NSN 5945-01-311-7354