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 6145-00-781-6998
NSN 5915-01-212-4492
NSN 5985-01-355-6708
NSN 5975-01-211-7705
NSN 6685-01-383-3098
NSN 5835-01-357-0544
NSN 5999-00-215-4048
NSN 5915-01-484-3100
NSN 2925-00-383-3523
NSN 5930-01-449-5970
NSN 5905-00-964-8812
NSN 5915-00-499-3909