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 5910-01-497-0226
NSN 6685-00-329-0352
NSN 5975-01-320-7440
NSN 6645-01-051-7447
NSN 6130-00-277-4402
NSN 6320-01-225-9963
NSN 5960-00-137-4751
NSN 6130-00-528-7838
NSN 5835-01-647-6426
NSN 6610-00-891-6370
NSN 5945-01-322-5935
NSN 5895-00-518-4954