MIL-STD-1168C
number is incorrectly applied. Any noted or suspected errors in lot numbers, their formatting, their application, or associated documentation shall be identified for correction (see 6.7.a).
4.1.3 Required use of complete lot number. In reference to individual lots, whether in correspondence, in records, or in marking containers, packages, cartons, etc., the complete lot number shall be used. This includes any associated suffixes, lot identifier codes, and lot theater indicator codes.
4.1.4 Changes in lot numbers during assembly. Unless otherwise specified (see
6.5), as components from various manufacturing activities are processed or combined to the next higher assembly levels, new lot numbers shall be required. If components are assembled into a higher level assembly, then the assembly shall be identified by an appropriate assembly lot number instead of by any of the component lot numbers. The new lot number shall have a manufacturer's identification symbol that corresponds to the facility currently performing the load, assemble, or pack (LAP) operations. Additionally the lot number shall have the appropriate year of manufacture/assembly, month of production, lot interfix, and sequence numbers that correspond to the LAP operations (see
6.7.b and 6.7.c). The same applies to LAP plants processing propellants, propellant charges and other types of energetics with the exception of propellants used in single granulation propellant charges (see 5.1). The assembly lot number does not replace the component lot number; the component lot numbers are still associated with the components and shall be noted on the ADC to maintain traceability.
Example:
Fuze, Point Initiating (PI), Base Detonating (BD), M509A1 Metal Parts (MPTS) - The metal parts manufacturing activity's lot number is NNN97F007-001. The LAP facility loading the fuze shall assign its own lot number to the LAP fuze lot. (Example: XYZ97G001-001 shall be the LAP lot number for the assembled fuze.) The assembled fuze shall not retain the NNN97F007-001 lot number
identification.
4.1.5 Serialized items. As specified by the contract or TDP, serial numbers shall be consecutively assigned to those ammunition end items or component items which require serialization control. The requirement for serialization can eliminate the requirement for ammunition lot numbering. Any serialization requirements should be interpreted as requirements in addition to the lot numbering requirements, unless it is specifically identified that a lot number is not required (see 6.2, 6.5, and 6.7.e). Serial numbers shall not be repeated on items with the same part number regardless of changes in the lot number.
4.2 Ammunition lot number - manuf actur er's iden ti ficati on s ymbol .
4.2.1 Manufactu rer 's ide nti ficati on s ymbol description. Manufacturer's identification symbols shall be all capital letters, and shall not exceed three (3) characters. An exception is if a one or two character manufacturer's identification symbol is used,
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