TM 9-2350-256-20-2
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symbol designations for the various maintenance levels are as follows:
1.
C--Operator/Crew Maintenance
2.
O--Unit Maintenance
3.
F--Direct Support Maintenance
4.
L--Specialized Repair Activity (SRA)
5.
H--General Support Maintenance
6.
D--Depot Maintenance
NOTE
SRA is not included in column 4 of the MAC. Functions to this level of maintenance are identified by a
work-time figure in column 4 as General Support ("H") and an associated referenced code is used in the
"Remarks" column, column 6.
Column 5, Tools and Test Equipment Reference Code
This specifies, by code, those common tools sets (not individual tools), common Test, Measurement, and Diagnostic Equipment
(TMDE), and special tools, special TMDE, and special support equipment required to perform the designated function. Codes
are keyed to tools and test equipment in the list that immediately follows the MAC.
Column 6, Remarks
When applicable, this contains a letter code, in alphabetical order.
Explanation of Columns in Tools and Test Equipment
Column 1, Reference Code
This is correlated with the code used in the MAC, column 5.
Column 2, Maintenance Level
This is the lowest level of maintenance authorized to use the tool or test equipment.
Column 3, Nomenclature
This is the name or identification of the tools or test equipment.
Column 4, National Stock Number (NSN)
This is assigned to the tool or test equipment; use it to request or requisition the item.
Column 5, Tool Number
This is the manufacturer's part number, model number, or type number.
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