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 7035-01-169-6551
NSN 7035-00-020-2227
NSN 6105-01-617-1831
NSN 6145-01-211-3603
NSN 4140-01-280-3872
NSN 6130-01-500-2359
NSN 5965-01-511-0402
NSN 5975-01-286-4085
NSN 2925-01-149-0352
NSN 6610-01-393-5475
NSN 5910-01-269-1218
NSN 5950-01-536-9618