National 10-P-130 Mud Pump Parts: EPL-1100 Assembly and Spray-System Guide

For a National 10-P-130 spare-parts request, the EPL-1100 catalog provides a useful assembly map. Its index separates the complete pump, power end, crankshaft and connecting rod, pinion shaft, piston/liner spray equipment and related lubrication systems. Following that structure helps a procurement team describe the actual repair requirement instead of asking for a broad "mud pump repair kit".

Model and source-reference facts

Separate the spray system from the pump assemblies

The December 1996 index identifies the piston/liner spray-system drawing as PL 1290320 and the power-end assembly as PL 1290001. The complete-pump bill of material calls 1290320 the liner spray system; the supplied selected component list calls it a liner spray manifold. Preserve both source descriptions and state the required assembly contents. A drawing reference and a component reference may share digits without defining the same purchasing scope.

The illustrated complete-pump bill of material identifies the rod clamp, liner bushing, liner clamp, valve-cover seal retainer and studded discharge module separately. In that list, 1290335 is the studded discharge module and 1290338 is the studded suction module. The piston rod and sub rod also have separate references. These distinctions make the parts list more useful when quotations include different assembly contents.

The examples below are selected reference entries, not a complete bill of material or a confirmation of interchangeability.

Details to include with the parts request

Send the pump nameplate and serial number with the catalog revision, drawing reference, item number and quantity. For a spray-system request, identify whether the requirement is the manifold, pump, motor, piping or a complete assembly. For a rod or liner-related part, provide the installed size, component photographs and any stamped number. Ask the supplier to state which associated components are included in the quotation.

For related purchasing information, see mud pump spare parts matching and liner, piston, valve and seat identification. You can contact Pratt Oil with your parts request for review of the model, reference and component details.

Brand and model names identify the equipment described in the source material. Final parts matching depends on the complete pump and assembly information.

Mud King catalogue references for this model

The reference list also includes entries from the Mud King Products expendables catalogue. MK and MKG prefixes identify that supplier catalogue’s numbering. Keep those prefixes and the stated size, valve series, liner outside diameter and source table together. They are not presented as original pump-manufacturer numbers or as a confirmation of fit.