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 5996-01-546-2025
NSN 5960-01-414-1677
NSN 5950-01-399-0248
NSN 5998-01-474-9678
NSN 5996-01-420-9679
NSN 6130-00-277-4402
NSN 6240-01-449-2883
NSN 5950-01-573-7961
NSN 6110-01-460-6735
NSN 4140-01-284-3198
NSN 5905-01-399-5503
NSN 6685-01-230-9116