ARMY PUBLICATION NUMBERING
Technical
and equipment publications have a four-part number (for example,
TM 55-1520-209-20). The last two digits of the number (-20 in the
example) represent the maintenance level supported by the publication.
Equipment publication maintenance levels
Number Description
-10 Operator/crew maintenance
-12 Operator and unit maintenance
-13 Operator through direct support maintenance
-14 Operator through intermediate general support
maintenance
-20 Unit maintenance
-23 Unit and intermediate general support maintenance
-24 Unit through intermediate general support maintenance
-30 Intermediate direct support maintenance
-34 Intermediate direct support and intermediate general
support maintenance
-40 Intermediate general support maintenance
Lettering.
Some technical and equipment publications numbers
contain a letter suffix at the end of the publication number
indicating a special purpose. A "P" is sometimes added to an equipment
publication number to indicate the manual is a repair parts and
special tools list (RPSTL). A "&P" added to the last number indicates
it is a maintenance manual that includes a repair parts and
special tools list.
Instead of ending in a two-digit number, some manuals (especially
for aircraft) end with letters.
Equipment publication lettering, Letter Description.
-BD Battle damage repair
-CL Pilot and crewmember checklist
(aircraft)
-HR Hand receipt
-L List of applicable publications
-MTF Maintenance test flight (aircraft)
-OP Operating procedures (Communications
Security Equipment)
-PM Phased maintenance inspection checklist
(aircraft)
-PMD Preventive maintenance daily inspection
checklist (aircraft)
-PMS Preventive maintenance services (aircraft)
-T Troubleshooting procedures (aircraft)
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