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 6685-01-383-3098
NSN 6110-01-148-2923
NSN 5915-00-925-9980
NSN 5950-00-619-0800
NSN 4140-00-450-6883
NSN 6145-00-461-1707
NSN 7035-01-022-1008
NSN 6145-00-423-1563
NSN 5950-01-596-8405
NSN 6620-01-069-0912
NSN 5985-01-263-9920
NSN 6610-01-160-6585