5120-01-430-8516

5330-99-810-7046 5330998107046 998107046 is 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.

3040-37-525-4252 3040375254252 375254252 is an item with an axial hole through which a piston rod slides. it may have coaxial holes to permit the free flow of hydraulic fulid, and the like. the fluid flow holes may permit the use of a spanner wrench to install the item. excludes bushing, machine thread.

1005-27-000-4128 1005270004128 270004128 is an open coiled spring, wound in various forms and from different shapes and types of materials and finished at the ends, designed to provide resistance to compression forces. excludes springs designed for thermal actuation (springs in which the torsion forces are designed to be counteracted by changes in temperature) and spring, reinforcing, hose.

4810-33-001-9529 4810330019529 330019529 is a replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. the body may have a flange of various shapes. for diesel and gasoline reciprocating engines, see insert, engine valve seat.

5325-14-418-4025 5325144184025 144184025 is a cylindrical item which may have wrenching and/or driving facilities and/or shoulders. it is designed to be inserted in a drilled, tapped or a pretapped hole, or molded or pressed into soft material to reduce the size of a tapped hole; to provide threads; to add strength, and/or to prevent stripping. it is one of the following: (1) a one-piece, flanged or unflanged, internally threaded item which may have external threads, and/or serrations around the periphery of the collar, designed to engage a serrated lock ring which is not included with the item; (2) a one-piece precision coiled wire; (3) a two-piece item consisting of an internally threaded cylinder and a mating externally threaded part; or (4) a one-piece internally threaded item whose outside diameter is tapered and/or knurled and/or with fin(s). the internal thread of the item may have a locking feature. excludes items having a sleeve on on its under portion which can be clinched or crimped. excludes bushing,machine thread; nut,plain,knurled; nut,plain,round; nut,plain,clinch and nut,self-locking,clinch. see also nut,plain,plate