TM 10-1670-269-23&P    0001 00 0001 00-4 LIST OF ACRONYMS AND ABBREVIATIONS -Continued Ft. Feet in. Inches L. Liters LG Long Lb/Lbs   Pound/Pounds MAC Maintenance Allocation Chart MIL-STD Military Standard MIRPS   Modified Improved Reserve Parachute System MTOE    Modified Table of Organization and Equipment MWO     Modified Work Order NIIN National Item Identification Number No. Number NSN National Stock Number OD Olive Drab oz. Ounce PMCS    Preventive Maintenance Checks and Services PQDR    Product Quality Deficiency Report psi Pounds per square inch RPSTL   Repair Parts and Special Tools List SDR Supply Discrepancy Report SMR Source, Maintenance, and Recoverability TAMMS The Army Maintenance Management System TB Technical Bulletin TM Technical Manual TMDE    Test Measurement and Diagnostic Equipment UOC Usable on Code U/M Unit of Measure WP Work Package