Oilfield drilling pump parts, namely, suction dampeners, bearings, crossheads, piston rods, valve guide inserts, liners, bushing gaskets, diaphragms, wedges, clamps, washers, valve covers, adjusting screws, studded discharge and suction modules, spacers, wear plates, strainers, baffles, inserts, connectors and adapters; oilfield drilling mud pump parts, namely, valve pot covers, valve guides, retainers, piston rods and clamps, lock bolts, cylinder heads and plugs therefore, liners and rings therefore, bushings, wear plates, crossheads with pins, crossheads with retainers, crossheads with guides, and fluid-end studded crossheads; parts for oilfield drilling swivels, namely, bumper assemblies, nut hose unions, sleeves, retainers, goosenecks, wash pipe assemblies, metal holding rings, metal packings, packing box seal spacers and gland nuts; oilfield drilling drawworks parts, namely, drum shaft assemblies, clutches, brakes, brake bands, air and water connectors, catshaft assemblies, jackshaft assemblies, motor draft jackshaft assemblies, and rotary countershaft assemblies; oilfield drilling parts for two piece "L" shaped fluid ends, namely, suction modules, discharge modules, valve covers, plug assemblies, valve guide inserts and liner wear plates; oilfield drilling gate valve parts, namely, front packers, locking shaft seals, "O" rings, and metal packing assemblies