PSC 6645: Time Measuring Instruments
6645 is the product and service code (PSC) federal agencies use for time measuring instruments, in the instruments and laboratory eqpt group. Here are the contracts open under it now, the NAICS codes it pairs with, and who buys and wins this work.
- Open contracts now
- 4
- Spending, FY2026
- $9.1 million
- Share to small businesses
- 50%
Open contracts with PSC 6645, due soonest
- GENERATOR,TIME CODE
✦ NAVSUP Weapon Systems Support has posted a solicitation for a time code generator (a timing device, PSC 6645).
Due in 4 daysOct 13, 2026
- CLOCK, PANEL
✦ DLA Aviation at Oklahoma City (Tinker AFB) wants quotes for 13 new panel clocks (NSN 6645-00-076-3050) for a Foreign Military Sales requirement.
Due in 17 daysOct 27, 2026
- 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
✦ DLA Aviation intends to buy 87 time totalizing meters (NSN 6645-013239411) used on UH-60 helicopters under a firm-fixed-price contract.
Due in 41 daysNov 19, 2026
Where 6645 sits in the PSC Manual
- Category: Product
- Group 66: Instruments and Laboratory Eqpt
- Code 6645: Time Measuring Instruments
NAICS codes used with PSC 6645
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with 6645 most often:
| NAICS | Industry | Spent, last 3 years |
|---|---|---|
| 334519 | Other Measuring and Controlling Device Manufacturing | $11.1 million |
| 334514 | Totalizing Fluid Meter and Counting Device Manufacturing | $3.4 million |
| 423940 | Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers | $1.9 million |
| 334513 | Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | $1.4 million |
| 334516 | Analytical Laboratory Instrument Manufacturing | $1.4 million |
| 336413 | Other Aircraft Parts and Auxiliary Equipment Manufacturing | $1.1 million |
Who buys under PSC 6645
Agencies with the most contract dollars under 6645 over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| Defense Logistics Agency | $11.9 million |
| Federal Acquisition Service | $3.5 million |
| Department of the Air Force | $2.9 million |
| Department of the Navy | $2.8 million |
| U.S. Geological Survey | $2.1 million |
| Bureau of Reclamation | $1.2 million |
| Federal Emergency Management Agency | $639,267 |
| Department of the Army | $401,531 |
Federal spending under PSC 6645 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $7.2 million |
| FY2025 | $10.4 million |
| FY2026 | $9.1 million |
| FY2027 (so far) | $6,067 |
Who wins PSC 6645 contracts
| Company | Obligated, last 3 years |
|---|---|
| Marathon Watch Company LTD | $4.6 million |
| Flame Enterprises, Inc. | $2.6 million |
| Taylor Hobson Inc | $1.2 million |
| Aar Supply Chain, Inc | $1.2 million |
| S I T Corporation | $860,885 |
| Cox Analytical Systems Sweden Ab | $860,000 |
| Fei-Zyfer, Inc. | $706,686 |
| Honeywell International Inc. | $665,872 |
| Laurus Systems Inc | $639,267 |
| Laurel Technologies Partnership | $592,892 |
Related PSC codes
- 6605 Navigational Instruments
- 6610 Flight Instruments
- 6615 Automatic Pilot Mechanisms and Airborne Gyro Components
- 6620 Engine Instruments
- 6625 Electrical and Electronic Properties Measuring and Testing Instruments
- 6630 Chemical Analysis Instruments
- 6632 Analysis Instruments, Medical Laboratory Use
- 6635 Physical Properties Testing and Inspection
- 6636 Environmental Chambers and Related Equipment
- 6640 Laboratory Equipment and Supplies
Frequently asked questions
What is PSC 6645?
6645 is the product code in the federal Product and Service Code (PSC) Manual for time measuring instruments, under 66 (Instruments and Laboratory Eqpt). Agencies put a PSC on every contract to record what they bought.
What is the difference between a PSC and a NAICS code?
A PSC describes what the government is buying. A NAICS code describes the industry of the business doing the work, and it sets the SBA size standard for small business set-asides. Every contract notice has both.
Which NAICS code goes with PSC 6645?
Most federal contract dollars under PSC 6645 go with NAICS 334519 (Other Measuring and Controlling Device Manufacturing), according to USAspending.gov. The contracting officer picks the NAICS code for each solicitation, so check the notice.
How do I find contracts that use PSC 6645?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 4 open notices use PSC 6645 right now. FedReady can match new ones to your business and email you, free.