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 5960-01-310-3863
NSN 5835-01-111-0969
NSN 5998-01-022-9718
NSN 5895-01-224-0104
NSN 4140-01-080-8268
NSN 5910-01-147-4902
NSN 7035-01-145-5059
NSN 6240-01-377-5503
NSN 6685-00-103-9589
NSN 5960-01-144-9183
NSN 6110-01-652-9108
NSN 5945-01-279-7176