1620 - AIRCRAFT LANDING GEAR COMPONENTS
1630 - AIRCRAFT WHEEL AND BRAKE SYSTEMS
1680 - MISCELLANEOUS AIRCRAFT ACCESSORIES AND COMPONENTS
4920 - NO DESCRIPTION AVAILABLE
AC14 - R&D- DEFENSE SYSTEM: AIRCRAFT (ENGINEERING DEVELOPMENT)
AJ14 - R&D- GENERAL SCIENCE/TECHNOLOGY: PHYSICAL SCIENCES (ENGINEERING DEVELOPMENT)
AS14 - AIR TRANSPORTATION (ENGINEERING)
AS24 - R&D-TRANS- MOTOR VEH-ENG DEV
B513 - SPECIAL STUDIES/ANALYSIS- FEASIBILITY (NON-CONSTRUCTION)
B541 - SPECIAL STUDIES/ANALYSIS- DEFENSE
B544 - TECHNOLOGY STUDIES
H215 - EQUIPMENT AND MATERIALS TESTING- AIRCRAFT AND AIRFRAME STRUCTURAL COMPONENTS
H217 - EQ TEST SVCS/AIRCRAFT GROUND EQUIP
H223 - EQ TEST SVCS/VEHICLES-TRAILERS-CYC
H228 - EQ TEST SVCS/ENGINES & TURBINES
H917 - OTHER QC SVCS/AIRCRAFT GROUND EQ
J015 - MAINT/REPAIR/REBUILD OF EQUIPMENT- AIRCRAFT AND AIRFRAME STRUCTURAL COMPONENTS
J016 - MAINT/REPAIR/REBUILD OF EQUIPMENT- AIRCRAFT COMPONENTS AND ACCESSORIES
J017 - MAINT/REPAIR/REBUILD OF EQUIPMENT- AIRCRAFT LAUNCHING, LANDING, AND GROUND HANDLING EQUIPMENT
K015 - MODIFICATION OF EQUIPMENT- AIRCRAFT AND AIRFRAME STRUCTURAL COMPONENTS
K016 - MODIFICATION OF EQUIPMENT- AIRCRAFT COMPONENTS AND ACCESSORIES
K017 - MODIFICATION OF EQUIPMENT- AIRCRAFT LAUNCHING, LANDING, AND GROUND HANDLING EQUIPMENT
N016 - INSTALLATION OF EQUIPMENT- AIRCRAFT COMPONENTS AND ACCESSORIES
N017 - INSTALLATION OF EQUIPMENT- AIRCRAFT LAUNCHING, LANDING, AND GROUND HANDLING EQUIPMENT
N049 - INSTALLATION OF EQUIPMENT- MAINTENANCE AND REPAIR SHOP EQUIPMENT
R706 - LOGISTICS SUPPORT SERVICES