Instruction manual

70 Insulated mounting boards

71 -

72 Master bill of material

73 Engineering data sheets

74 -

75 Reworked or exchanged assemblies

The middle six digits describe a basic type of part, such

as physical or electrical characteristics of a group or

family of parts. As an example, a resistor family of 1/2

watt carbon resistors have the number 000045. The part

number of one specific resistor in this family is a 54-

000045-0102.

The last four digits describe a specific part within the

family and may be assigned in numerical sequence or

may describe the specific part value. The following table

lists those part categories where the last four digits have

a significant meaning to the technician.