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 |
|---|---|---|---|---|---|---|
| AD26 | R&D- Defense Other: Services (Management/Support)Federal contract product or service | $15.96B | 54,638 | 48 | 162 | Jul 14, 2026 |
| 1315 | Ammunition, 75Mm Through 125MmFederal contract product or service | $15.92B | 6,881 | 48 | 40 | May 21, 2026 |
| Z119 | Maint-Rep-Alt/Other Admin BldgsFederal contract product or service | $15.91B | 132,785 | 46 | 145 | Oct 15, 2025 |
| AR12 | Space R&D Services; Space Flight, Research And Supporting Activities; Applied ResearchFederal contract product or service | $15.88B | 25,400 | 48 | 6 | Aug 20, 2026 |
| G099 | Social- OtherFederal contract product or service | $15.66B | 48,125 | 48 | 146 | Aug 21, 2026 |
| AC54 | R&D- Defense System: Weapons (Engineering Development)Federal contract product or service | $15.60B | 7,700 | 48 | 14 | Apr 16, 2026 |
| D319 | It And Telecom- Annual Software Maintenance Service PlansFederal contract product or service | $15.48B | 85,455 | 15 | 164 | Aug 20, 2026 |
| J018 | Maint/Repair/Rebuild Of Equipment- Space VehiclesFederal contract product or service | $15.46B | 1,465 | 48 | 22 | Aug 5, 2026 |
| S208 | Housekeeping- Landscaping/GroundskeepingFederal contract product or service | $15.34B | 195,109 | 48 | 136 | Aug 21, 2026 |
| AZ13 | R&D- Other Research And Development (Advanced Development)Federal contract product or service | $15.07B | 17,634 | 48 | 60 | Aug 21, 2026 |
| S299 | Housekeeping- OtherFederal contract product or service | $14.97B | 107,327 | 48 | 179 | Aug 21, 2026 |
| Q402 | Nursing Home, Long-Term & Adult Day Care ServicesFederal contract product or service | $14.91B | 337,031 | 48 | 20 | Aug 20, 2026 |
| AD21 | R&D- Defense Other: Services (Basic Research)Federal contract product or service | $14.83B | 65,528 | 48 | 158 | Aug 21, 2026 |
| 6350 | Miscellaneous Alarm, Signal, And Security Detection SystemsFederal contract product or service | $14.80B | 111,756 | 48 | 199 | Aug 21, 2026 |
| K016 | Modification Of Equipment- Aircraft Components And AccessoriesFederal contract product or service | $14.71B | 16,572 | 48 | 18 | Jul 1, 2026 |
| M151 | Operation Of Ammunition FacilitiesFederal contract product or service | $14.67B | 9,883 | 43 | 6 | Mar 22, 2023 |
| 1925 | Special Service VesselsFederal contract product or service | $14.63B | 4,820 | 48 | 44 | Aug 19, 2026 |
| AD25 | R&D- Defense Other: Services (Operational Systems Development)Federal contract product or service | $14.59B | 47,361 | 48 | 133 | Aug 14, 2026 |
| Q301 | Reference Laboratory TestingFederal contract product or service | $14.58B | 142,612 | 48 | 141 | Aug 21, 2026 |
| 1990 | Miscellaneous VesselsFederal contract product or service | $14.24B | 9,375 | 48 | 57 | Aug 10, 2026 |
| 5985 | Antennas, Waveguides, And Related EquipmentFederal contract product or service | $14.18B | 130,270 | 48 | 106 | Aug 21, 2026 |
| AZ16 | R&D- Other Research And Development (Management/Support)Federal contract product or service | $14.15B | 18,071 | 48 | 88 | Aug 5, 2026 |
| Q503 | Medical- DentistryFederal contract product or service | $13.93B | 42,063 | 48 | 41 | Aug 21, 2026 |
| Y1DA | Construction Of Hospitals And InfirmariesFederal contract product or service | $13.92B | 21,259 | 15 | 9 | Aug 20, 2026 |
| 5805 | Telephone And Telegraph EquipmentFederal contract product or service | $13.80B | 154,844 | 48 | 232 | Aug 21, 2026 |
| AC21 | National Defense R&D Services; Atomic Energy Defense Activities; Basic ResearchFederal contract product or service | $13.71B | 24,331 | 48 | 14 | Aug 12, 2026 |
| Y141 | Construct/Hospitals & InfirmariesFederal contract product or service | $13.66B | 26,646 | 48 | 30 | May 21, 2026 |
| Y161 | Construct/Family HousingFederal contract product or service | $13.47B | 18,735 | 45 | 52 | Aug 11, 2023 |
| S111 | Utilities- GasFederal contract product or service | $13.33B | 103,480 | 49 | 115 | Aug 21, 2026 |
| S205 | Housekeeping- Trash/Garbage CollectionFederal contract product or service | $13.24B | 181,110 | 48 | 140 | Aug 21, 2026 |
| R704 | Support- Management: AuditingFederal contract product or service | $13.20B | 47,655 | 45 | 225 | Aug 21, 2026 |
| R410 | Support- Professional: Program Evaluation/Review/DevelopmentFederal contract product or service | $13.13B | 43,427 | 15 | 153 | Aug 21, 2026 |
| 8970 | Composite Food PackagesFederal contract product or service | $13.10B | 72,561 | 48 | 73 | Aug 5, 2026 |
| D310 | It And Telecom- Cyber Security And Data BackupFederal contract product or service | $13.09B | 27,611 | 39 | 188 | Aug 21, 2026 |
| AR92 | R&D- Space: Other (Applied Research/Exploratory Development)Federal contract product or service | $13.08B | 3,214 | 48 | 9 | Jul 24, 2026 |
| 5825 | Radio Navigation Equipment, Except AirborneFederal contract product or service | $12.96B | 20,522 | 48 | 108 | Aug 20, 2026 |
| K015 | Modification Of Equipment- Aircraft And Airframe Structural ComponentsFederal contract product or service | $12.90B | 14,061 | 48 | 21 | Aug 17, 2026 |
| AJ11 | General Science And Technology R&D Services; General Science And Technology; Basic ResearchFederal contract product or service | $12.83B | 65,599 | 48 | 84 | Aug 21, 2026 |
| B541 | Special Studies/Analysis- DefenseFederal contract product or service | $12.70B | 25,436 | 43 | 40 | Aug 17, 2026 |
| 2530 | Vehicular Brake, Steering, Axle, Wheel, And Track ComponentsFederal contract product or service | $12.66B | 136,560 | 48 | 61 | Jul 9, 2026 |
| R608 | Support- Administrative: Translation And InterpretingFederal contract product or service | $12.64B | 267,456 | 44 | 191 | Aug 21, 2026 |
| 2330 | TrailersFederal contract product or service | $12.61B | 37,675 | 48 | 115 | Aug 21, 2026 |
| 6115 | Generators And Generator Sets, ElectricalFederal contract product or service | $12.51B | 61,042 | 48 | 130 | Aug 21, 2026 |
| AN13 | Health R&D Services; Health Care Services; Experimental DevelopmentFederal contract product or service | $12.38B | 6,303 | 45 | 29 | Aug 21, 2026 |
| 1230 | Fire Control Systems, CompleteFederal contract product or service | $12.32B | 7,267 | 48 | 70 | Jul 10, 2026 |
| S119 | Utilities- OtherFederal contract product or service | $12.11B | 61,962 | 49 | 139 | Aug 20, 2026 |
| R705 | Support- Management: Debt CollectionFederal contract product or service | $12.06B | 8,572 | 45 | 60 | Aug 14, 2026 |
| Z1DA | Maintenance Of Hospitals And InfirmariesFederal contract product or service | $12.04B | 32,620 | 15 | 18 | Aug 21, 2026 |
| R418 | Support- Professional: LegalFederal contract product or service | $11.98B | 193,716 | 44 | 203 | Aug 21, 2026 |
| DG01 | It And Telecom - Network Support Services (Labor)Federal contract product or service | $11.96B | 15,561 | 6 | 116 | Aug 21, 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.