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 5905-00-884-3884
NSN 5945-00-163-7261
NSN 6685-01-222-8110
NSN 5998-00-468-1441
NSN 5895-01-127-1236
NSN 6620-01-263-6697
NSN 4140-00-954-4695
NSN 5895-00-001-5633
NSN 6105-00-297-3762
NSN 5998-01-327-8246
NSN 5930-01-123-2916
NSN 5920-01-024-9190