Separate size from frequency
Large obligations can come from a small number of major actions. Actions and active fiscal years show whether purchasing is sustained.
Federal PSC Codes
Search every four-character PSC product or service recorded across complete FPDS contract history. Compare market size, purchasing frequency, customer breadth, and the most recent recorded activity.
PSC Directory
Federal PSC Directory
Every four-character PSC code with recorded activity anywhere in FPDS contract history is included. Open a code to continue into its market profile.
3,572 published PSC codes.
| PSC | Product or service | Obligations | Actions | Active FYs | Federal customers | Latest activity |
|---|---|---|---|---|---|---|
| AH96 | R&D- Environmental Protection: Other (Management/Support)Federal contract product or service | $537.15M | 2,366 | 45 | 39 | Oct 30, 2024 |
| AJ21 | R&D- General Science/Technology: Mathematical/Computer Sciences (Basic Research)Federal contract product or service | $536.21M | 1,799 | 38 | 37 | Jul 25, 2026 |
| M1FC | Operation Of Troop Housing FacilitiesFederal contract product or service | $535.33M | 216 | 14 | 4 | May 30, 2026 |
| F021 | Natural Resources/Conservation- Site PreparationFederal contract product or service | $534.98M | 8,356 | 38 | 51 | Sep 10, 2026 |
| AJ22 | R&D- General Sci/Tech: Mathematical/Computer Sciences (Applied Research/Exploratory Development)Federal contract product or service | $534.38M | 1,631 | 38 | 34 | Aug 14, 2026 |
| X1FA | Lease/Rental Of Family Housing FacilitiesFederal contract product or service | $530.61M | 5,269 | 15 | 34 | Sep 11, 2026 |
| X119 | Lease-Rent Of Other Admin-Svc BldgsFederal contract product or service | $530.28M | 6,200 | 45 | 109 | Jul 29, 2022 |
| B524 | Special Studies/Analysis- Mathematical/StatisticalFederal contract product or service | $526.81M | 3,128 | 48 | 120 | Sep 11, 2026 |
| Q702 | Technical Medical SupportFederal contract product or service | $525.72M | 3,911 | 11 | 41 | Sep 8, 2026 |
| 6730 | Photographic Projection EquipmentFederal contract product or service | $525.46M | 16,690 | 48 | 172 | Sep 3, 2026 |
| M154 | Oper Of Govt Ship Const-Rep FacFederal contract product or service | $525.37M | 1,652 | 22 | 5 | Jan 17, 2017 |
| 5419 | Collective Modular Support SystemFederal contract product or service | $525.27M | 7,696 | 28 | 58 | Sep 4, 2026 |
| J043 | Maint/Repair/Rebuild Of Equipment- Pumps And CompressorsFederal contract product or service | $524.46M | 15,429 | 48 | 84 | Sep 11, 2026 |
| J053 | Maint/Repair/Rebuild Of Equipment- Hardware And AbrasivesFederal contract product or service | $524.29M | 2,074 | 47 | 77 | Sep 3, 2026 |
| AJ23 | R&D- General Science/Technology: Mathematical/Computer Sciences (Advanced Development)Federal contract product or service | $524.05M | 1,368 | 34 | 33 | Sep 12, 2024 |
| H218 | Equipment And Materials Testing- Space VehiclesFederal contract product or service | $518.35M | 397 | 46 | 4 | May 20, 2026 |
| 6125 | Converters, Electrical, RotatingFederal contract product or service | $516.36M | 4,179 | 48 | 68 | Sep 10, 2026 |
| 1190 | Specialized Test And Handling Equipment, Nuclear OrdnanceFederal contract product or service | $514.97M | 1,546 | 48 | 45 | Aug 27, 2026 |
| Y1JB | Construction Of Testing And Measurement BuildingsFederal contract product or service | $514.75M | 459 | 15 | 17 | Aug 24, 2026 |
| Z1EE | Maintenance Of Tank Automotive FacilitiesFederal contract product or service | $513.75M | 281 | 15 | 11 | Jun 10, 2026 |
| AR90 | R&D-Other SpaceFederal contract product or service | $513.00M | 2,781 | 22 | 6 | Mar 15, 2000 |
| K042 | Modification Of Equipment- Fire Fighting/Rescue/Safety Equipment; Environ Protect Equipment/MatlsFederal contract product or service | $511.08M | 622 | 41 | 27 | Aug 12, 2026 |
| C223 | Architect And Engineering- General: Mechanical SystemsFederal contract product or service | $508.23M | 1,857 | 15 | 34 | Sep 8, 2026 |
| Q516 | Medical- PediatricFederal contract product or service | $507.53M | 5,252 | 44 | 25 | Sep 7, 2026 |
| 6506 | Blood And Blood ProductsFederal contract product or service | $507.07M | 7,789 | 42 | 25 | Sep 9, 2026 |
| 5990 | Synchros And ResolversFederal contract product or service | $506.04M | 10,483 | 48 | 36 | Jun 12, 2026 |
| X1LZ | Lease/Rental Of Parking FacilitiesFederal contract product or service | $503.09M | 12,100 | 15 | 118 | Sep 11, 2026 |
| AJ52 | R&D- General Science/Technology: Life Sciences (Applied Research/Exploratory Development)Federal contract product or service | $502.85M | 1,701 | 34 | 32 | Aug 26, 2026 |
| Q510 | Medical- NeurologyFederal contract product or service | $501.93M | 7,004 | 47 | 22 | Sep 8, 2026 |
| Z1JA | Maintenance Of Museums And Exhibition BuildingsFederal contract product or service | $501.82M | 2,909 | 15 | 20 | Sep 10, 2026 |
| N041 | Installation Of Equipment- Refrigeration, Air Conditioning, And Air Circulating EquipmentFederal contract product or service | $497.98M | 5,864 | 48 | 97 | Sep 11, 2026 |
| Q513 | Orthopedic Surgery ServicesFederal contract product or service | $494.23M | 8,946 | 48 | 21 | Sep 11, 2026 |
| Y221 | Construct/Airport Service RoadsFederal contract product or service | $489.68M | 1,294 | 39 | 26 | May 31, 2017 |
| F001 | Natural Resources/Conservation- Aerial Fertilization/SprayingFederal contract product or service | $489.52M | 5,423 | 48 | 36 | Sep 3, 2026 |
| Z123 | Maint-Rep-Alt/Radar & Nav FacFederal contract product or service | $489.40M | 3,639 | 39 | 17 | Oct 14, 2025 |
| C222 | Architect And Engineering- General: Electrical SystemsFederal contract product or service | $489.19M | 2,979 | 15 | 53 | Sep 9, 2026 |
| X199 | Lease-Rent Of Misc BldgsFederal contract product or service | $488.37M | 7,694 | 45 | 104 | Nov 29, 2023 |
| 1850 | Space Vehicle Handling And Servicing EquipmentFederal contract product or service | $485.46M | 981 | 37 | 17 | May 31, 2017 |
| AJ47 | R&D- General Science/Technology: Engineering (Commercialized)Federal contract product or service | $485.09M | 478 | 26 | 12 | Jul 14, 2025 |
| 5977 | Electrical Contact Brushes And ElectrodesFederal contract product or service | $484.87M | 14,532 | 48 | 37 | Sep 10, 2026 |
| AJ94 | R&D- General Science/Technology: Other (Engineering Development)Federal contract product or service | $483.79M | 1,161 | 35 | 30 | Jun 2, 2025 |
| 3415 | Grinding MachinesFederal contract product or service | $482.97M | 3,619 | 48 | 50 | Sep 2, 2026 |
| X161 | Lease-Rent Of Family HousingFederal contract product or service | $482.63M | 3,299 | 41 | 60 | Apr 17, 2019 |
| Z1BA | Maintenance Of Air Traffic Control TowersFederal contract product or service | $482.07M | 3,114 | 15 | 7 | Sep 11, 2026 |
| Z2FD | Repair Or Alteration Of Dining FacilitiesFederal contract product or service | $481.53M | 1,740 | 15 | 23 | Sep 2, 2026 |
| 7350 | TablewareFederal contract product or service | $481.30M | 56,221 | 48 | 65 | Sep 10, 2026 |
| V241 | Transportation/Travel/Relocation- Travel/Lodging/Recruitment: Military Personnel RecruitmentFederal contract product or service | $479.61M | 5,992 | 48 | 21 | Sep 8, 2026 |
| Y1AB | Construction Of Conference Space And FacilitiesFederal contract product or service | $479.61M | 1,494 | 15 | 49 | Sep 4, 2026 |
| Q511 | Ophthalmology & OptometryFederal contract product or service | $479.29M | 6,376 | 48 | 24 | Sep 11, 2026 |
| B509 | Special Studies/Analysis- Endangered Species: Plant/AnimalFederal contract product or service | $478.49M | 7,078 | 48 | 49 | Sep 11, 2026 |
Reading PSC Data
How to evaluate a federal market by PSC
PSC identifies the contractor product or service associated with an award action. Read obligations together with action frequency, active fiscal years, customer breadth, and recent activity before treating a classification as an addressable market.
Follow the customers
Federal customer count shows whether demand is concentrated in a narrow buyer set or distributed across government.
Validate current relevance
Latest activity helps separate active federal markets from classifications that primarily describe older contract history.