Table 1-1.—Codes and Categories for Real Property USING THE P-437 CODES CATEGORIES 100 Operations and Training 200 Maintenance and Production 300 Research. Development, and Evaluation 400 Supply 500 Hospital and Medical 600 Administrative 700 Housing and Community Support 800 Utilities and Ground Improvements 900 Real  Estate A facility required for an electrical power plant will be found in the 800 series, Utilities and Ground Improvements.  The  assemblies  contained  within  each of these facilities consist of a grouping of line items at the national stock number level that, when assembled, will  perform  a  specific  function  in  support  of  the facility.  These  assemblies  are  functionally  grouped  in such a way that the assembly relates to the Seabee skill required to install it. These groupings are shown in table 1-2. When you are using the ABFC System, remember that it is possible to tailor it to serve your specific needs. Understand your exact requirements and mis- sion. Choose components, facilities, or assemblies that fit or can be tailored to meet your desired goals. Verify stock numbers and descriptions by using appropriate stock  lists.  Verification  is  done  automatically  when components,  facilities,  or  assemblies  are  ordered. A sample from volume II of NAVFAC P-437 shows the structure and type of information provided. Figure 1-1 shows the P-25 component, Naval Mobile Construction Battalion. The component containsa list- ing of facilities by category code. One such facility is the electric power plant diesel, 2-200 kW without tank, facility, 811 10R. Figure 1-2 shows  this  facility.  Note  that  within  the  facility  the necessary  assemblies  are  identified. Figure 1-3 shows an assembly from within facility 811  10R.  The  listing  for  assembly  32602,  titled "PANELBOARD   ASSY   1200A   WEATHER- Table 1-2.—Assemblies Functionally Grouped to Seabee Skills DESCRIPTION NUMBER SEQUENCE START STOP Builder (BU) Oriented Utilitiesman (UT) Oriented Construction Electrician (CE) Oriented Steelworker (SW) Oriented Equipment Operator (EO) Oriented Waterfront  Equipment Underwater Construction and Diving Equipment Operational Supplies NBC  Warfare Personnel-Related Supplies Unassigned at Present Shop Equipment including Maintenance Tools Unique ABFC Tool Kits NCF TOA Construction Tools and Kits (Power Tools) NCF TOA Construction Tools and Kits (Electric) NCF TOA Construction Tools and Kits (Miscellaneous) NCF TOA Construction Tools and Kits (Rigging) Shop Equipment (ABFC Unique) 10,000 19,999 20,000 29,999 30,000 39,999 40,000 49,999 50,000 54,999 55,000 57,999 58,000 59,999 60,000 62,499 65,000 67,499 67,500 69,999 70,000 79,999 80,000 80,999 81,000 81,999 82,000 82,499 82,500 82,999 83,000 83,999 84,000 84,999 85,000 87,499 1-2