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 7035-01-421-4446
NSN 5915-01-519-2234
NSN 6685-00-682-7459
NSN 7035-01-055-6806
NSN 5915-00-212-7970
NSN 6145-01-044-1635
NSN 5910-01-217-4021
NSN 2925-00-951-0150
NSN 2925-00-275-1807
NSN 5925-01-410-8515
NSN 7035-01-575-5642
NSN 5915-01-204-8613