NAICS Code 334519: Other Measuring and Controlling Device Manufacturing

National industry

SBA small business size standard: 600 employees

Definition

This U.S. industry comprises establishments primarily engaged in manufacturing measuring and controlling devices (except search, detection, navigation, guidance, aeronautical, and nautical instruments and systems; automatic environmental controls for residential, commercial, and appliance use; instruments for measurement, display, and control of industrial process variables; totalizing fluid meters and counting devices; instruments for measuring and testing electricity and electrical signals; analytical laboratory instruments; irradiation equipment; and electromedical and electrotherapeutic apparatus).

Code facts

Contract awards
3,946 In the last 12 months
Contract obligations
$667,999,638 In FY2025

NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.

Business activities under NAICS 334519

  • Abrasion testing machines manufacturing
  • Accelerometers (except aerospace type) manufacturing
  • Actinometers, meteorological, manufacturing
  • Aircraft engine instruments manufacturing
  • Alarm clocks manufacturing
  • Alidades, surveying, manufacturing
  • Appliance timers manufacturing
  • Automotive emissions testing equipment manufacturing
  • Barographs manufacturing
  • Barometers manufacturing
  • Ceilometers manufacturing
  • Chains, surveyor's, manufacturing
  • Chronographs manufacturing
  • Chronometers manufacturing
  • Clock materials and parts (except crystals) manufacturing
  • Clock or watch springs, precision, made from purchased wire
  • Clocks assembling
  • Clocks assembling from purchased components
  • Commercial timing mechanisms manufacturing
  • Compasses, portable magnetic-type, manufacturing
  • Count rate meters, nuclear radiation, manufacturing
  • Dating devices and machines (except rubber stamps) manufacturing
  • Detectors, scintillation, manufacturing
  • Dosimetry devices manufacturing
  • Drafting instruments manufacturing
  • Dynamometers manufacturing
  • Evaporation meters manufacturing
  • Fatigue testing machines, industrial, mechanical, manufacturing
  • Fire detector systems, nonelectric, manufacturing
  • Fuel densitometers, aircraft engine, manufacturing
  • Fuel mixture indicators, aircraft engine, manufacturing
  • Fuel system instruments, aircraft, manufacturing
  • Fuel totalizers, aircraft engine, manufacturing
  • Galvanometers, geophysical, manufacturing
  • Gas leak detectors manufacturing
  • Geiger counters manufacturing
  • Geophysical instruments manufacturing
  • Hand stamps (e.g., date, time), timing mechanism operated, manufacturing
  • Hardness testing equipment manufacturing
  • Household-type timing mechanisms manufacturing
  • Humidity instruments (except industrial process and air-conditioning type) manufacturing
  • Hydrometers (except industrial process-type) manufacturing
  • Hygrometers (except industrial process-type) manufacturing
  • Hygrothermographs manufacturing
  • Indicator testers, turntable, manufacturing
  • Instrumentation for reactor controls, auxiliary, manufacturing
  • Ion chambers manufacturing
  • Kinematic test and measuring equipment manufacturing
  • Leak detectors, water, manufacturing
  • Level gauges, radiation-type, manufacturing
  • Levels and tapes, surveying, manufacturing
  • Lie detectors manufacturing
  • Magnetometers manufacturing
  • Mechanisms, clockwork operated device, manufacturing
  • Metal detectors manufacturing
  • Meteorologic tracking systems manufacturing
  • Meteorological instruments manufacturing
  • Modules for clocks and watches manufacturing
  • Movements, watch or clock, manufacturing
  • Nephoscopes manufacturing
  • Nuclear instrument modules manufacturing
  • Physical properties testing and inspection equipment manufacturing
  • Pitometers manufacturing
  • Polygraph machines manufacturing
  • Pressure and vacuum indicators, aircraft engine, manufacturing
  • Pressure transducers manufacturing
  • Pulse analyzers, nuclear monitoring, manufacturing
  • Pyrheliometers manufacturing
  • RADIAC (radioactivity detection, identification, and computation) equipment manufacturing
  • Radiation detection and monitoring instruments manufacturing
  • Radioactivity detection, identification, and computation (RADIAC) equipment manufacturing
  • Rain gauges manufacturing
  • Rods, surveyor's, manufacturing
  • Rules, slide, manufacturing
  • Sample changers, nuclear radiation, manufacturing
  • Scalers, nuclear radiation, manufacturing
  • Scintillation detectors manufacturing
  • Seismographs manufacturing
  • Seismometers manufacturing
  • Seismoscopes manufacturing
  • Sextants, surveying, manufacturing
  • Solarimeters manufacturing
  • Spectrometers (e.g., liquid scintillation, nuclear) manufacturing
  • Springs, clock and watch, made from purchased wire
  • Surveying instruments manufacturing
  • Tapes, surveyor's, manufacturing
  • Templates, drafting, manufacturing
  • Tensile strength testing equipment manufacturing
  • Testers for checking hydraulic controls on aircraft manufacturing
  • Testing equipment (e.g., abrasion, shearing strength, tensile strength, torsion) manufacturing
  • Theodolites, surveying, manufacturing
  • Thermocouples (except industrial process, aircraft type, glass vacuum) manufacturing
  • Thermometer, liquid-in-glass and bimetal types (except medical), manufacturing
  • Thickness gauging instruments, ultrasonic, manufacturing
  • Thrust power indicators, aircraft engine, manufacturing
  • Time clocks and time recording devices manufacturing
  • Time locks manufacturing
  • Time stamps containing clock mechanisms manufacturing
  • Timers for industrial use, clockwork mechanism, manufacturing
  • Timing mechanisms, clockwork, manufacturing
  • Torsion testing equipment manufacturing
  • Transducers, pressure, manufacturing
  • Transits, surveying, manufacturing
  • T-squares (drafting) manufacturing
  • Ultrasonic testing equipment (except medical) manufacturing
  • Vibration meters, analyzers, and calibrators, manufacturing
  • Viscosimeters (except industrial process type) manufacturing
  • Wall clocks manufacturing
  • Watch jewels manufacturing
  • Watchcase manufacturing
  • Watches and parts (except crystals) manufacturing
  • Water leak detectors manufacturing
  • Weather tracking equipment manufacturing
  • Whole body counters, nuclear, manufacturing
  • Wind direction indicators manufacturing
Show all 115

Contract obligations by fiscal year

Fiscal year Obligated
FY2027 To date $4,261,560
FY2026 $649,490,859
FY2025 $667,999,638
FY2024 $716,387,324
FY2023 $992,576,946

Top contractors by obligations

Rank Contractor Obligated, FY2026–FY2027 Share
1 Laurel Technologies Partnership UEI M1N1TSKZQY17 $74,923,565
2 Lockheed Martin Corporation $56,265,771
3 Design West Technologies Inc. $48,019,988
4 Velico Medical, Inc. $38,392,251
5 Scitech Services Inc. $34,147,574
6 Atlantic Diving Supply, Inc. $23,572,621
7 Laurel Technologies Partnership UEI JLREE96WGKM5 $21,816,968
8 Safeware Inc. $20,428,568
9 Newvac, LLC $18,634,204
10 Vaisala Inc. $15,382,385

Top funding agencies by obligations

Rank Agency Obligated, FY2026–FY2027 Share
1 Department of the Navy Department of Defense $248,622,298
2 Department of the Army Department of Defense $99,108,437
3 Defense Logistics Agency Department of Defense $80,426,824
4 Department of Health and Human Services $39,945,237
5 Department of Commerce $31,253,185
6 Defense Finance and Accounting Service Department of Defense $29,906,772
7 Air Force Department of Defense $24,947,855
8 Office of the Secretary of Defense Department of Defense $22,263,574
9 Department of Transportation $20,167,897
10 Department of Homeland Security $15,008,267

Contract obligations by state

Rank Place of performance Obligated, last 12 months Share
1 Florida $149,738,580
2 California $97,628,827
3 Maryland $76,021,133
4 Massachusetts $51,301,010
5 Virginia $45,291,824
6 New York $37,877,961
7 Pennsylvania $28,325,750
8 Colorado $11,104,727
9 Kentucky $10,312,392
10 Arkansas $9,294,406
11 District of Columbia $7,854,355
12 Missouri $6,614,352
13 Ohio $6,558,469
14 Kansas $6,185,290
15 Georgia $5,984,230
16 Washington $5,831,549
17 New Jersey $5,540,925
18 Tennessee $5,520,346
19 Utah $5,423,903
20 Illinois $4,772,504
21 Alabama $4,530,119
22 Connecticut $4,334,751
23 Texas $4,216,407
24 Oklahoma $3,620,620
25 Minnesota $3,377,874
26 Michigan $3,212,966
27 Rhode Island $3,081,610
28 Indiana $2,759,050
29 New Hampshire $2,629,086
30 Oregon $2,403,410
31 North Carolina $2,098,129
32 Arizona $2,046,231
33 Wisconsin $1,940,020
34 Louisiana $1,402,031
35 South Carolina $1,308,363
36 Idaho $1,125,914
37 Nevada $1,000,693
38 Montana $635,472
39 North Dakota $607,078
40 Alaska $531,371
41 New Mexico $516,445
42 Mississippi $428,574
43 Iowa $387,514
44 Wyoming $281,780
45 West Virginia $201,876
46 Hawaii $161,031
47 Puerto Rico $135,580
48 Nebraska $48,999
49 Delaware $31,784
Show all 49

Shares are of everything obligated under NAICS 334519 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.

Contract opportunities

Notice Posted Due
Notice of Intent to Sole Source - High Temperature Furnace and Grips Special Notice · Glenn Research Center
Indicator, sight, liquid Limited / Sole Source Justification · Aviation (DLA) · SPE4A626R0283 —
Indicator, pressure Solicitation · Aviation (DLA)
Controller, motor Solicitation · Land and Maritime (DLA) · SPE7M127T2272
Sensor assembly Solicitation · Land and Maritime (DLA)
Indicator, sight, liquid Solicitation · Aviation (DLA) · SPE4A527T2621
Switching unit, power T Solicitation · Land and Maritime (DLA) · SPE7M127T2284
Gage rod-cap, liquid LE Solicitation · Land and Maritime (DLA)
Contactor, magnetic Solicitation · Land and Maritime (DLA) · SPE7M127T2232
Panel, control assembly Solicitation · Land and Maritime (DLA)
Electrical Pit Furnace Upgrade Special Notice · ACC Rock Island
NSN 6695-016583861, transducer, pressure, wsdc: YJN, virginia class submarine Pre-Solicitation · Aviation (DLA)
Dampener, fluid pressure Award Notice · Aviation (DLA) —
Transmitter, pressure Solicitation · Aviation (DLA)
Transmitter, liquid QUA Solicitation · Aviation (DLA) · SPE4A527T2446
Scanner assembly, AI, in repair/modification of Solicitation · Naval Supply Systems Command (Navy)
Probe, humidity-tempera Solicitation · Aviation (DLA)
Distribution box Solicitation · Land and Maritime (DLA)
Regulator, voltage Solicitation · Land and Maritime (DLA) · SPE7M127T1993
Regulator, voltage Solicitation · Land and Maritime (DLA) · SPE7M127T1977
Meter movement Solicitation · Aviation (DLA) · SPE4A527T2278
Amplifier, electronic C Solicitation · Land and Maritime (DLA)
JOFOC - Sole Source Extension - Test Facility Operations, Maintenance, and Engineering services (TFOME-II) Limited / Sole Source Justification · Glenn Research Center —
Lab equipment - High Temperature/High Pressure Cell per quote and SOW. Special Notice · Shared Services Center
OFDR C+L Band Optical Reflectometry System for Reflection Measurement Solicitation · Department of Energy
Notice of Intent to Sole Source Solicitation · EPA Region 5
Controller, motor Solicitation · Land and Maritime (DLA) · SPE7M127Q0169
66 - Test Set, Electronic Pre-Solicitation · Land and Maritime (DLA)
Transmitter, temperatur Solicitation · Aviation (DLA)
Watch, wrist Solicitation · Aviation (DLA)
Probe, eddy current Solicitation · Aviation (DLA)
Laser Alignment System & Camera Removal Solicitation · Land and Maritime (DLA)
Transmitter, liquid Solicitation · Aviation (DLA)
Accelerometer; Electrical; Linear; WSDC: [26F]/ END ITEM: F-16 Aircraft; PR: 7016385437 NSN: 6680-010714924: IAW P/N: 4311A-12-P75 Pre-Solicitation · Aviation (DLA)
Brake, electric Solicitation · Land and Maritime (DLA)
SPE4A526R0260; 6695016730476; Transducer, Motional. Limited / Sole Source Justification · Aviation (DLA) —
Magnaflux SF-1515 Demagnetizer Solicitation · Air Force Sustainment Center (AFMC)
Transmitter, liquid QUA Solicitation · Aviation (DLA) · SPE4A627T8212
Thread inspection system Solicitation · Land and Maritime (DLA)
Contactor, magnetic Award Notice · Land and Maritime (DLA) · SPE7M127T1349 —
Transducer, motional Award Notice · Aviation (DLA) —
APCRBC140 replacement battery cartridges Solicitation · Shared Services Center
NSN: 6695009541431, tranducer, motional, wsdc: 21F aircraft freedom fighter F-5 Pre-Solicitation · Aviation (DLA)
SPE4A727R0106 - 6685 - thermostat, flow control / wsic F Pre-Solicitation · Aviation (DLA)
Switching unit, power T Solicitation · Land and Maritime (DLA) · SPE7M127T1907
Controller, motor Solicitation · Land and Maritime (DLA) · SPE7M827U0007
Elec power monitor Solicitation · Land and Maritime (DLA)
Thermostat, flow contro Solicitation · Aviation (DLA)
Meter movement Solicitation · Aviation (DLA) · SPE4A527T2187
Panel, power distrib Solicitation · Land and Maritime (DLA)
Show 40 more

Latest 50 of 41,888 listed here. See the rest on GovTribe.

Size standard history

Federal Register rules that named this code

From the NAICS codes each rule's amendments to 13 CFR 121.201 name. Rules that print their size standard tables as images aren't listed.

Quick answers

What is NAICS 334519?

NAICS 334519 is Other Measuring and Controlling Device Manufacturing, a national industry in NAICS 31-33, Manufacturing.

What is the NAICS code for clocks assembling?

The NAICS code for clocks assembling is 334519, Other Measuring and Controlling Device Manufacturing.

What is the NAICS code for watchcase manufacturing?

The NAICS code for watchcase manufacturing is 334519, Other Measuring and Controlling Device Manufacturing.

What is the NAICS code for barographs manufacturing?

The NAICS code for barographs manufacturing is 334519, Other Measuring and Controlling Device Manufacturing.

When did the size standard for NAICS 334519 last change?

The most recent Federal Register rule on record that names NAICS 334519 in the SBA's size standards is "Small Business Size Standards: Manufacturing and Industries With Employee-Based Size Standards in Other Sectors Except Wholesale Trade and Retail Trade" (88 FR 9970), published Feb 15, 2023 and effective Mar 17, 2023.

How much do federal agencies spend under NAICS 334519?

Federal contracts under NAICS 334519 obligated $667,999,638 in fiscal year 2025 and $3,030,716,328 in fiscal years 2023 through 2027.

Who are the largest contractors under NAICS 334519?

The contractors with the most obligated under NAICS 334519 in fiscal years 2026 and 2027 are Laurel Technologies Partnership ($74,923,565), Lockheed Martin Corporation ($56,265,771) and Design West Technologies Inc. ($48,019,988).

Which agencies buy the most under NAICS 334519?

The agencies that obligated the most under NAICS 334519 in fiscal years 2026 and 2027 are Department of the Navy ($248,622,298), Department of the Army ($99,108,437) and Defense Logistics Agency ($80,426,824).

Which PSC codes are used with NAICS 334519?

The PSC codes with the most obligated under NAICS 334519 in fiscal years 2026 and 2027 are 5999 Miscellaneous Electrical and Electronic Components, 6625 Electrical and Electronic Properties Measuring and Testing Instruments and 6665 Hazard-Detecting Instruments and Apparatus.

Where is the work under NAICS 334519 performed?

By place of performance, the states with the most contract obligations under NAICS 334519 over the last 12 months are Florida ($149,738,580), California ($97,628,827) and Maryland ($76,021,133).

What is the latest contract opportunity under NAICS 334519?

The latest contract opportunity under NAICS 334519 is Notice of Intent to Sole Source - High Temperature Furnace and Grips, special notice from Glenn Research Center, posted November 6, 2026.

On GovTribe

See everything under NAICS 334519

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