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 5925-00-864-4293
NSN 5999-00-125-0964
NSN 6220-01-137-2848
NSN 5996-01-207-0804
NSN 6610-00-777-7494
NSN 5975-01-312-9500
NSN 6240-01-646-8592
NSN 5855-00-310-2740
NSN 6685-01-568-5246
NSN 5925-01-061-9717
NSN 5905-01-315-3138
NSN 6145-01-426-2931