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 5965-00-339-2743
NSN 6135-01-026-9960
NSN 6685-00-146-2308
NSN 5998-01-398-1056
NSN 6240-01-448-6781
NSN 5998-01-219-5383
NSN 5975-01-596-5800
NSN 5975-01-134-6966
NSN 5990-01-552-5386
NSN 6220-01-173-7860
NSN 6240-01-411-5425
NSN 5925-01-325-6185