Which product or service code accounts for the most federal spending in FY2023?

Aircraft, Fixed Wing, with $39.6B in FY2023.

How is a PSC different from a NAICS code?

PSC says what the government bought; NAICS says what industry sold it. A single purchase carries both, and they answer different questions.

Where does this ranking come from?

It is computed from USASpending.gov award records, which are U.S. government works and in the public domain. Each figure is the FY2023 dollars coded to that product or service code. TheFiscalFinder does the ranking; the underlying figures are the government's own.

How many codes are shown?

The top 100 for FY2023. Each row opens that code's own page, where the same money is broken out by year, by counterparty and by place.

Does a high position mean anything is wrong?

No. This is a description of where public money went in FY2023, computed from public records. It is not an allegation about anyone on it.

Rankings

Top product and service codes by federal dollars: FY2023

FY2023 · complete year · data as of 2026-07-03

≈ computed · PSC

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Aircraft, Fixed Wing accounted for more federal purchasing than any other product or service code in FY2023: $39.6B. Product and Service Codes describe WHAT was bought — a specific aircraft, a category of research, a kind of professional service — where NAICS describes the industry that supplies it. Computed

Ranked from USASpending records. FY2020 to FY2026 are loaded. Rank vs FY2022 is each name's change in position from FY2022; a dash means the name was not in FY2022's data.

Quick findings

Computed

The top 10 account for 43% of the $536.3B combined total of all 100 codes listed.
Ammunition, Over 125MM rose the most, from #335 in FY2022 to #41 in FY2023.
Support- Professional: Emergency Response/Disaster Planning/Preparedness Support fell the most among those listed, from #42 in FY2022 to #99 in FY2023.

Rank	Name	FY2023	FY2022	Change	Rank vs FY2022
01	Aircraft, Fixed WingPSC 1510	$39.6B	$22.7B	+75%	▲ 4
02	Medical- Managed HealthcarePSC Q201	$31.5B	$29.7B	+6%	same
03	Support- Professional: Engineering/TechnicalPSC R425	$30.3B	$28.2B	+8%	same
04	Support- Professional: OtherPSC R499	$29.3B	$24.8B	+18%	same
05	Combat Ships and Landing VesselsPSC 1905	$23.5B	$17.2B	+37%	▲ 1
06	Drugs and BiologicalsPSC 6505	$22.7B	$44.1B	−48%	▼ 5
07	Operation of Miscellaneous BuildingsPSC M1JZ	$15.5B	$15.3B	+2%	same
08	IT and Telecom - Business Application/Application Development Support Services (Labor)PSC DA01	$15.4B	$12.6B	+22%	same
09	Guided MissilesPSC 1410	$14.2B	$11.4B	+25%	▲ 1
10	Support- Professional: Program Management/SupportPSC R408	$12.7B	$12.3B	+3%	▼ 1
11	Oper of Govt R&D GOCO FacilitiesPSC M181	$12.2B	$10.8B	+13%	▲ 1
12	Liquid Propellants and Fuels, Petroleum BasePSC 9130	$10.7B	$11.3B	−5%	▼ 1
13	Gas Turbines and Jet Engines, Aircraft, Prime Moving; and ComponentsPSC 2840	$10.2B	$9.1B	+12%	same
14	National Defense R&D Services; Department of Defense - Military; Experimental DevelopmentPSC AC13	$8.9B	$5.4B	+64%	▲ 6
15	Social- Government Health Insurance ProgramsPSC G007	$8.9B	$8.4B	+6%	▼ 1
16	Support- Management: Logistics SupportPSC R706	$7.8B	$7.5B	+5%	▲ 1
17	Maint/Repair/Rebuild of Equipment- Aircraft and Airframe Structural ComponentsPSC J015	$7B	$6.5B	+8%	▲ 2
18	Aircraft, Rotary WingPSC 1520	$6.2B	$4.6B	+34%	▲ 3
19	Marine Lifesaving and Diving EquipmentPSC 4220	$6B	$4.2B	+44%	▲ 8
20	National Defense R&D Services; Atomic Energy Defense Activities; R&D Administrative ExpensesPSC AC24	$5.7B	$4.5B	+26%	▲ 3
21	IT and Telecom- Other IT and TelecommunicationsPSC D399	$5.6B	$7.6B	−26%	▼ 5
22	IT and Telecom - Business Application/Application Development Software as a ServicePSC DA10	$5.5B	$4.2B	+31%	▲ 3
23	National Defense R&D Services; Defense-Related Activities; Applied ResearchPSC AC32	$5.2B	$3.7B	+41%	▲ 10
24	Miscellaneous Aircraft Accessories and ComponentsPSC 1680	$5.1B	$4.6B	+10%	▼ 2
25	Construction of Miscellaneous BuildingsPSC Y1JZ	$5.1B	$6.8B	−26%	▼ 7
26	IT and Telecom - Business Application Software (Perpetual License Software)PSC 7A21	$4.9B	$4.2B	+18%	same
27	Housekeeping- GuardPSC S206	$4.7B	$4.4B	+7%	▼ 3
28	Medical and Surgical Instruments, Equipment, and SuppliesPSC 6515	$4.7B	$7.8B	−40%	▼ 13
29	Hardware, Weapon SystemPSC 5342	$4.3B	$397.4M	+992%	▲ 236
30	Radar Equipment, Except AirbornePSC 5840	$4B	$4.1B	−1%	▼ 2
31	Combat, Assault, and Tactical Vehicles, TrackedPSC 2350	$3.9B	$2.8B	+42%	▲ 13
32	Repair or Alteration of Miscellaneous BuildingsPSC Z2JZ	$3.9B	$2.8B	+37%	▲ 11
33	Support- Administrative: OtherPSC R699	$3.8B	$3.6B	+5%	▲ 1
34	Other Environmental ServicesPSC F999	$3.8B	$3.5B	+9%	▲ 3
35	Transportation/Travel/Relocation- Transportation: Space Transportation/LaunchPSC V126	$3.7B	$3.6B	+3%	same
36	Operation of Government-Owned Contractor-Operated (GOCO) R&D FacilitiesPSC M1HA	$3.7B	$3.6B	+3%	same
37	Support- Management: OtherPSC R799	$3.5B	$3.4B	+3%	▲ 1
38	Precious Metals Primary FormsPSC 9660	$3.5B	$4B	−13%	▼ 8
39	Guided Missile Systems, CompletePSC 1425	$3.3B	$1.4B	+133%	▲ 52
40	Construction of Other Non-Building FacilitiesPSC Y1PZ	$3.2B	$1.5B	+112%	▲ 44
41	Ammunition, Over 125MMPSC 1320	$3.2B	$267.5M	—	▲ 294
42	R&D- Other Research and Development (Basic Research)PSC AZ11	$3.1B	$3B	+5%	▼ 1
43	Architect and Engineering- General: OtherPSC C219	$3.1B	$2.6B	+21%	▲ 6
44	IT and Telecom - IT Management Support Services (Labor)PSC DF01	$3.1B	$2.3B	+37%	▲ 14
45	Nuclear ReactorsPSC 4470	$3.1B	$3.9B	−22%	▼ 14
46	IT and Telecom- Integrated Hardware/Software/Services Solutions, Predominantly ServicesPSC D318	$3B	$3.7B	−18%	▼ 14
47	Housekeeping- Facilities Operations SupportPSC S216	$3B	$4B	−25%	▼ 18
48	Medical- Evaluation/ScreeningPSC Q403	$3B	$2.6B	+14%	same
49	Electronic Countermeasures, Counter-Countermeasures and Quick Reaction Capability EquipmentPSC 5865	$2.9B	$2.5B	+17%	▲ 1
50	Combat, Assault, and Tactical Vehicles, WheeledPSC 2355	$2.9B	$2.8B	+5%	▼ 5
51	Launchers, Guided MissilePSC 1440	$2.9B	$850.5M	+236%	▲ 93
52	National Defense R&D Services; Department of Defense - Military; Applied ResearchPSC AC12	$2.8B	$2.2B	+29%	▲ 7
53	Meat, Poultry, and FishPSC 8905	$2.8B	$2.6B	+6%	▼ 6
54	IT and Telecom - End User: Help Desk;Tier 1-2,Workspace,Print,Output,Productivity Tools (HW/Perp SW)PSC 7E20	$2.7B	$1.9B	+46%	▲ 17
55	Maint/Repair/Rebuild of Equipment- Aircraft Components and AccessoriesPSC J016	$2.6B	$2.4B	+8%	▼ 3
56	Environmental Systems Protection- Environmental RemediationPSC F108	$2.6B	$1.9B	+38%	▲ 13
57	Fruits and VegetablesPSC 8915	$2.6B	$2B	+27%	▲ 5
58	Oper of Govt Other Industrial BldgPSC M159	$2.5B	$2B	+28%	▲ 6
59	Repair or Alteration of Office BuildingsPSC Z2AA	$2.5B	$2.1B	+16%	▲ 2
60	Airframe Structural ComponentsPSC 1560	$2.4B	$2.7B	−8%	▼ 14
61	Health R&D Services; Health Care - Other; Applied ResearchPSC AN42	$2.4B	$435.5M	+455%	▲ 192
62	Support- Management: FinancialPSC R710	$2.4B	$2.3B	+4%	▼ 7
63	Transportation/Travel/Relocation- Transportation: Air CharterPSC V121	$2.4B	$1.4B	+63%	▲ 26
64	Space R&D Services; Space Flight, Research and Supporting Activities; Basic ResearchPSC AR11	$2.3B	$2.3B	+1%	▼ 7
65	IT and Telecom - Service Delivery Support Services: ITSM, Operations Center, Project/PM (Labor)PSC DD01	$2.3B	$1.6B	+46%	▲ 16
66	Medical- OtherPSC Q999	$2.2B	$2.5B	−12%	▼ 15
67	Non-Nuclear Ship Repair (East)PSC J998	$2.1B	$1.8B	+22%	▲ 6
68	Maint/Repair/Rebuild of Equipment- Engines, Turbines, and ComponentsPSC J028	$2.1B	$2B	+10%	▼ 1
69	Construction of Other Administrative Facilities and Service BuildingsPSC Y1AZ	$2B	$1.6B	+25%	▲ 9
70	Space R&D Services; Space Flight, Research and Supporting Activities; Applied ResearchPSC AR12	$2B	$1.1B	+78%	▲ 41
71	Passenger Motor VehiclesPSC 2310	$2B	$1.5B	+33%	▲ 12
72	Construction of Office BuildingsPSC Y1AA	$2B	$3.2B	−37%	▼ 32
73	Fuel OilsPSC 9140	$2B	$2.4B	−18%	▼ 20
74	Laboratory Equipment and SuppliesPSC 6640	$1.9B	$3.3B	−42%	▼ 35
75	National Defense R&D Services; Defense-Related Activities; Experimental DevelopmentPSC AC33	$1.9B	$694.2M	+175%	▲ 93
76	Transportation/Travel/Relocation- Transportation: Marine CharterPSC V124	$1.9B	$1.6B	+22%	▲ 4
77	Housekeeping- Custodial JanitorialPSC S201	$1.9B	$1.9B	+1%	▼ 7
78	Construction of Highways, Roads, Streets, Bridges, and RailwaysPSC Y1LB	$1.9B	$1.4B	+35%	▲ 18
79	Guided Missile ComponentsPSC 1420	$1.9B	$2.2B	−13%	▼ 19
80	Health R&D Services; Health Care Services; Basic ResearchPSC AN11	$1.9B	$1.1B	+74%	▲ 37
81	Radar Equipment, AirbornePSC 5841	$1.9B	$1.5B	+21%	▲ 1
82	Communications Security Equipment and ComponentsPSC 5810	$1.9B	$2.3B	−18%	▼ 26
83	Non-Nuclear Ship Repair (West)PSC J999	$1.9B	$1.7B	+9%	▼ 7
84	Unmanned AircraftPSC 1550	$1.8B	$1.7B	+11%	▼ 7
85	IT and Telecom - Network Support Services (Labor)PSC DG01	$1.8B	$1.4B	+35%	▲ 16
86	IT and Telecom - End User: Help Desk; Tier 1-2, Workspace, Print, Output, Productivity Tools (Labor)PSC DE01	$1.8B	$916.1M	+98%	▲ 49
87	Support- Management: AdvertisingPSC R701	$1.8B	$1.7B	+5%	▼ 12
88	Health R&D Services; Health Care Services; Applied ResearchPSC AN12	$1.8B	$1.4B	+30%	▲ 10
89	National Defense R&D Services; Atomic Energy Defense Activities; Experimental DevelopmentPSC AC23	$1.8B	$1.7B	+2%	▼ 15
90	National Defense R&D Svcs; Department of Defense - Military; R&D Facilities & Maj EquipPSC AC15	$1.8B	$1.4B	+23%	same
91	R&D- Space: Science/Applications (Applied Research/Exploratory Development)PSC AR22	$1.8B	$2B	−10%	▼ 25
92	IT and Telecom - Security and Compliance Support Services (Labor)PSC DJ01	$1.6B	$1.1B	+48%	▲ 22
93	Space VehiclesPSC 1555	$1.6B	$1.6B	−2%	▼ 14
94	R&D- Defense System: Electronics/Communication Equipment (Basic Research)PSC AC61	$1.5B	$1.4B	+13%	▲ 6
95	Maint/Repair/Rebuild of Equipment- Training Aids and DevicesPSC J069	$1.5B	$1.3B	+15%	▲ 8
96	National Defense R&D Services; Atomic Energy Defense Activities; Applied ResearchPSC AC22	$1.5B	$1.5B	+5%	▼ 8
97	BombsPSC 1325	$1.5B	$1.4B	+9%	same
98	Construction of Other Airfield StructuresPSC Y1BZ	$1.5B	$923.2M	+63%	▲ 35
99	Support- Professional: Emergency Response/Disaster Planning/Preparedness SupportPSC R429	$1.5B	$3B	−49%	▼ 57
100	Maint/Repair/Rebuild of Equipment- Guided MissilesPSC J014	$1.5B	$1B	+44%	▲ 21

PSC pages currently show their awards but not a recipient breakdown; the loader's per-recipient pass fetches NAICS and assistance codes only. That is a gap in this site, not in the source.

Questions

Which product or service code accounts for the most federal spending in FY2023?: Aircraft, Fixed Wing, with $39.6B in FY2023.
How is a PSC different from a NAICS code?: PSC says what the government bought; NAICS says what industry sold it. A single purchase carries both, and they answer different questions.
Where does this ranking come from?: It is computed from USASpending.gov award records, which are U.S. government works and in the public domain. Each figure is the FY2023 dollars coded to that product or service code. TheFiscalFinder does the ranking; the underlying figures are the government's own.
How many codes are shown?: The top 100 for FY2023. Each row opens that code's own page, where the same money is broken out by year, by counterparty and by place.
Does a high position mean anything is wrong?: No. This is a description of where public money went in FY2023, computed from public records. It is not an allegation about anyone on it.

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Why the labels? The graph is only worth anything if the links are trusted. Facts taken straight from a federal filing are Source; figures we calculate are Computed; links we infer (corporate parents, districts, similar contractors, connections between records) are Inferred, worded carefully, never asserted as fact and never a claim that one thing caused another. Spot an error? Tell us.