PSC 6645: Time Measuring Instruments

Product code

Code facts

Spend category
Industrial Products & Services Test & Measurement Supplies
Contract awards
2,139 In the last 12 months
Contract obligations
$10,542,361 In FY2025

PSC codes and definitions come from the GSA PSC Manual and contract spending from SAM.gov/FPDS.

Contract obligations by fiscal year

Fiscal year Obligated
FY2027 To date $584
FY2026 $8,168,340
FY2025 $10,542,361
FY2024 $7,178,799
FY2023 $7,325,020

Top contractors by obligations

Rank Contractor Obligated, FY2026–FY2027 Share
1 Marathon Watch Company LTD $1,588,368
2 Taylor Hobson Inc. $1,224,226
3 Flame Enterprises, Inc. $1,147,478
4 Cox Analytical Systems Sweden AB $860,000
5 Northrop Grumman Systems Corporation $426,132
6 Atlantic Diving Supply, Inc. $268,420
7 Microchip Technology Inc. $207,340
8 Aviation Procurement Systems, LLC $184,981
9 ECI Defense Group, Inc. $178,885
10 Goodrich Corporation $164,472

Top funding agencies by obligations

Rank Agency Obligated, FY2026–FY2027 Share
1 Defense Logistics Agency Department of Defense $2,257,209
2 Air Force Department of Defense $1,649,081
3 General Services Administration $1,549,704
4 Department of the Navy Department of Defense $1,319,220
5 Department of the Interior $1,268,490
6 Department of the Army Department of Defense $94,621
7 Environmental Protection Agency $27,386
8 Office of the Secretary of Defense Department of Defense $2,716
9 Department of State $498

Contract obligations by state

Rank Place of performance Obligated, last 12 months Share
1 California $1,239,672
2 Oklahoma $1,224,226
3 Virginia $416,716
4 Georgia $390,725
5 Florida $319,298
6 New York $269,970
7 Maryland $203,626
8 West Virginia $164,472
9 Michigan $141,158
10 New Jersey $135,703
11 Washington $132,925
12 Alaska $118,680
13 Arizona $113,058
14 Wyoming $109,555
15 Nevada $91,250
16 Alabama $66,992
17 Montana $56,152
18 Pennsylvania $50,614
19 Massachusetts $36,832
20 Ohio $28,229
21 Texas $26,999
22 District of Columbia $22,849
23 Utah $20,677
24 North Carolina $18,239
25 Colorado $13,920
26 Louisiana $10,133
27 Illinois $8,058
28 Kansas $4,119
29 Indiana $2,312
30 South Carolina $1,720
31 Wisconsin $370
32 Minnesota $78
Show all 32

Shares are of everything obligated under PSC 6645 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.

Contract opportunities

Notice Posted Due
Meter, Time Totalizing, [WSDC: 40A] End Item: Helicopter, UH-60A, UH-60L, UH-60V PR: 7016784839; NSN: 6645-013239411 IAW P/N: 999A0061 and P/N: 166125-100 Pre-Solicitation · Aviation (DLA)
Clock, panel Solicitation · Aviation (DLA)
Clock panel, NSN: 6645-01-520-3119RK, ALT NSN: 6645-01-398-9100RK, PN: DNM-100-150, ALT PN: DNM-100-150-06 Solicitation · Aviation (DLA) · SPRTA1-26-R-0108-AMD-0002
Generator, time code Solicitation · Naval Supply Systems Command (Navy) · N0038326QTC88
Generator, time code Pre-Solicitation · Naval Supply Systems Command (Navy) · N0038326QTC88
Master generation u Solicitation · Naval Supply Systems Command (Navy) · N0010426QSD60
Fenix 8 Watches and HRM 600s Award Notice · Coast Guard · 34269PR260000033 —
Acoustic Monitoring System Equipment Special Notice · Office of Acquisitions and Grants (USGS)
152 OG Health and Safety Monitor Devices Award Notice · Army National Guard —
sensors, dataloggers, cables. Solicitation · Office of Acquisitions and Grants (USGS)
Generator time code Solicitation · Land and Maritime (DLA) · SPRMM126RGF64
NIST NB688000-26-02193 EIMAC Vacuum Tubes Pre-Solicitation · National Institute of Standards and Technology · NIST_NB688000-26-02193_EIMAC_Vacuum_Tubes
Clock, Panel_End_Item_Multi_NSN_6645000763050RK_PN_ABU11A Pre-Solicitation · Aviation (DLA)
Generator time code Pre-Solicitation · Land and Maritime (DLA) · SPRMM126RGF64
Masterclock Grandmaster GMR1000 Timing Units Solicitation · Air Force Sustainment Center (AFMC)
Fossil watches Award Notice · Land and Maritime (DLA) · SPMYM226P7799 —
NIST NB688000-26-02193 EIMAC Vacuum Tubes Pre-Solicitation · National Institute of Standards and Technology · NB688000-26-02193_EIMAC_Vacuum_Tubes
Fenix 8 Watches and HRM 600s Solicitation · Coast Guard · 34269PR260000033
Generator time code Pre-Solicitation · Land and Maritime (DLA) · SPRMM126RGF64
Global Navigation Satellite System (GNSS) Receiver Solicitation · Office of Acquisitions and Grants (USGS)
Master generation u Solicitation · Land and Maritime (DLA) · SPRMM126QMG49
GPS Clock Solicitation · International Boundary and Water Commission U.S.-Mexico
Centralized Clock Update Bassett Army Community Hospital Pre-Solicitation · Defense Health Agency
Global Navigation Satellite System (GNSS) Receivers Pre-Solicitation · Office of Acquisitions and Grants (USGS)
Time and Frequency System Pre-Solicitation · Naval Air Warfare Center (NAVAIR)
Luciol Instruments Correlation Optical Time-Domain Reflectometer (C-OTDR) for USNO Solicitation · Naval Supply Systems Command (Navy)
7 Time Zone Clocks Pre-Solicitation · Air Forces Europe and Africa (USAF)
Sutron xlink 500 datalogger Award Notice · Bureau of Reclamation —
Request for Information (RFI) Wrist Watch Pre-Solicitation · Federal Acquisition Service
Fossil watches Solicitation · Land and Maritime (DLA) · SPMYM226Q7241
ITRAX FELXRAY - COX ANALYTICAL SYS - Notice of Int Special Notice · Office of Acquisitions and Grants (USGS)
Generator, time code Solicitation · Naval Supply Systems Command (Navy) · N0038326QTB35
Clock panel, NSN: 6645-01-520-3319RK, ALT NSN: 6645-01-398-9100RK, PN: DNM-100-150, ALT PN: DNM-100-150-06 Solicitation · Aviation (DLA) · SPRTA1-26-R-0108-AMD-0001
Sutron Xlink 500 Dataloggers Solicitation · Bureau of Reclamation
Case, make-break CIR Award Notice · Aviation (DLA) · SPRRA226Q0017 —
Clock panel, NSN: 6645-01-520-3319RK, ALT NSN: 6645-01-398-9100RK, PN: DNM-100-150, ALT PN: DNM-100-150-06 Solicitation · Aviation (DLA) · SPRTA1-26-R-0108
Nise 2611 masterclock part numbers Solicitation · Naval Air Warfare Center (NAVAIR)
Case, make-break CIR Solicitation · Aviation (DLA) · SPRRA2-26-Q-0017
SPE4A626RX589, 6645-014412762, Watch, Wrist, PN:DW6900-1V Solicitation · Aviation (DLA) · SPE4A626RX589
Talyrond rotor stack measurement machine Solicitation · Air Force Sustainment Center (AFMC)
SPE4A626RX589, 6645-014412762, Watch, Wrist, PN:DW6900-1V Pre-Solicitation · Aviation (DLA) · SPE4A626RX589
X-Ray Fluorescence Core ScannerSOURCES SOUGHT Special Notice · Office of Acquisitions and Grants (USGS)
Clock panel, NSN: 6645-01-520-3119RK, ALT NSN: 6645-01-398-9100RK, PN: DNM-100-150, ALT PN: DNM-100-150-06 Pre-Solicitation · Aviation (DLA) · SPRTA1-26-R-0108-001
Case, make-break CIR Pre-Solicitation · Aviation (DLA) · SPRRA2-26-Q-0017
Universal DAQ system Solicitation · Bureau of Reclamation · 140R8126Q0003
78361 Rubidium Frequency Standard PZIMB Robins AFB Solicitation · Air Force Sustainment Center (AFMC)
Timer, sequential Award Notice · Aviation (DLA) —
Clock panel, NSN: 6645-01-520-3119RK, ALT NSN: 6645-01-398-9100RK, PN: DNM-100-150, ALT PN: DNM-100-150-06 Pre-Solicitation · Aviation (DLA) · SPRTA1-26-R-0108
Universal DAQ system Special Notice · Bureau of Reclamation · 140R8126Q0003
Master generation u Solicitation · Naval Supply Systems Command (Navy) · N0010426QJA19
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Latest 50 of 301 listed here. See the rest on GovTribe.

Definition

Includes: Clocks; Job Recording Devices; Time Recorders; Time Stamps; Watch and Clock Movements; Watches.

Quick answers

What is PSC 6645?

PSC 6645 is Time Measuring Instruments, a product code in PSC 66, Instruments and Laboratory Equipment.

How much do federal agencies spend under PSC 6645?

Federal contracts under PSC 6645 obligated $10,542,361 in fiscal year 2025 and $33,215,103 in fiscal years 2023 through 2027.

Who are the largest contractors under PSC 6645?

The contractors with the most obligated under PSC 6645 in fiscal years 2026 and 2027 are Marathon Watch Company LTD ($1,588,368); Taylor Hobson Inc. ($1,224,226); and Flame Enterprises, Inc. ($1,147,478).

Which agencies buy the most under PSC 6645?

The agencies that obligated the most under PSC 6645 in fiscal years 2026 and 2027 are Defense Logistics Agency ($2,257,209), Air Force ($1,649,081) and General Services Administration ($1,549,704).

Which NAICS codes are used with PSC 6645?

The NAICS codes with the most obligated under PSC 6645 in fiscal years 2026 and 2027 are 423940 Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers; 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables; and 334519 Other Measuring and Controlling Device Manufacturing.

Where is the work under PSC 6645 performed?

By place of performance, the states with the most contract obligations under PSC 6645 over the last 12 months are California ($1,239,672), Oklahoma ($1,224,226) and Virginia ($416,716).

What is the latest contract opportunity under PSC 6645?

The latest contract opportunity under PSC 6645 is Meter, Time Totalizing, [WSDC: 40A] End Item: Helicopter, UH-60A, UH-60L, UH-60V PR: 7016784839; NSN: 6645-013239411 IAW P/N: 999A0061 and P/N: 166125-100, pre-solicitation from Aviation (DLA), posted October 5, 2026.

On GovTribe

See everything under PSC 6645

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