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 6135-00-767-0331
NSN 5999-01-090-4172
NSN 6240-00-364-0850
NSN 6685-01-306-6970
NSN 5945-00-842-2025
NSN 6220-01-537-4125
NSN 6320-00-089-9425
NSN 5855-00-925-0114
NSN 6620-01-437-0387
NSN 5835-01-602-0311
NSN 5985-01-622-7265
NSN 5925-00-999-1710