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 6110-00-806-5459
NSN 6610-01-141-7014
NSN 6145-00-382-6199
NSN 5965-01-564-5573
NSN 6240-00-899-6990
NSN 5975-00-538-7957
NSN 6145-00-202-8570
NSN 5895-00-596-8678
NSN 6645-01-582-2601
NSN 6220-01-106-3215
NSN 5985-01-065-0421
NSN 6685-01-217-5019