Item must comply with requirements of defense supply center philadelphia production standard no. Po0127nrp
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 5905-01-042-7522
NSN 6620-00-643-1402
NSN 5835-00-111-3419
NSN 5985-01-338-5466
NSN 2925-01-464-3093
NSN 6320-01-421-3777
NSN 5950-00-372-5591
NSN 5996-00-079-0384
NSN 5945-01-332-3274
NSN 6145-01-101-4763
NSN 5960-00-770-3701
NSN 6620-00-181-6391