Fuel Distribution System Mechanic
Drawn directly from OPM FedScope (June 2026), this page tracks headcount, average salary, tenure, and pay comparison for the Fuel Distribution System Mechanic occupation series (code 4255).
The verdict
In the Plumbing and Pipefitting Family family, Fuel Distribution System Mechanic counts 133 employees, a smaller, specialized federal occupation at 0.0% of the federal civilian workforce, and headcount declined 2.2% from the prior period; pay averages n/a, which pays below the federal-wide $117,339.
- Employees
- 133
- Share of workforce
- 0.0%
- Avg salary
- n/a
- Avg tenure
- 13.4 yrs
FedScope read on Fuel Distribution System Mechanic (thin series)
Federal agencies employ 133 people in the Fuel Distribution System Mechanic occupation (OPM code 4255), accounting for 0.0% of the total federal civilian workforce of 1,953,300 for the June 2026 reporting window. Headcount in this occupation moved down by -2.2% versus the prior period, though at this small a headcount, year-to-year swings can reflect a handful of hires or departures rather than a broad hiring trend.
Fuel Distribution System Mechanic pays n/a per year on average, moving down 0.0% from the prior period (a small shift, within the range of normal year-to-year rounding rather than a broad pay-table change). Employees in this role stay an average of 13.4 years, a mid-length average tenure, reflecting a mix of career employees and those who transfer or exit mid-career.
Fuel Distribution System Mechanic sits inside the Plumbing and Pipefitting Family family (code 42), which contains 4 related occupations across the federal government. Candidates browsing USAJOBS for Fuel Distribution System Mechanic postings should also review these sibling occupations in the Plumbing and Pipefitting Family family.
Within the Plumbing and Pipefitting Family family, Fuel Distribution System Mechanic is one of the top 4 occupations by headcount (#3), accounting for 3.0% of the family's combined 4,411 employees.
Salary context · lean-pay series
How Fuel Distribution System Mechanic pay compares to the federal average of $117,339
Occupation Average
n/a
Federal Average
$117,339
vs. Federal Avg
-100.0%
Where Fuel Distribution System Mechanic ranks on lean federal pay
Its average salary of n/a is higher than 0% of federal occupation series (0 of 541). The highlighted bar marks where Fuel Distribution System Mechanic sits in the federal pay distribution.
Average-salary distribution across all 541 federal occupation series; Fuel Distribution System Mechanic ranks higher than 0%.
Related Occupations in Plumbing and Pipefitting Family
3 other occupations in the same family
| Occupation | Employees | Avg Salary | Avg LOS |
|---|---|---|---|
| Pipefitting | 3,398 | $80,582 | 10.2 yrs |
| Plumbing | 822 | $84,050 | 10.2 yrs |
| Miscellaneous Plumbing and Pipefitting | 58 | $150,118 | 13.2 yrs |
Nationwide peers near this thin headcount
Two peer sets for Fuel Distribution System Mechanic outside the Plumbing and Pipefitting Family family, on headcount and average salary axes that vary across all OPM occupation series.
Similar thin headcount
Nearest employee counts in other occupation families (133 here).
Similar lean average salary
Nearest average salaries in other occupation families (n/a here).
Key takeaways
- Fuel Distribution System Mechanic pays below the federal average by 100.0% (n/a vs $117,339 federal-wide), at the 0th percentile for pay among 541 tracked occupation series.
- A smaller, specialized federal occupation by headcount: 133 employees, 0.0% of the federal civilian workforce, and headcount declined 2.2% from the prior period.
- According to OPM FedScope June 2026, Fuel Distribution System Mechanic ranks #444 of 663 federal occupation series by headcount (the same employee_count ordering as our occupations directory).
- Within the Plumbing and Pipefitting Family family, Fuel Distribution System Mechanic is one of the top 4 occupations by headcount (#3), accounting for 3.0% of the family's combined 4,411 employees.
OPM FedScope and Federal Workforce Data figures are federal civilian headcounts, average salaries, and length-of-service statistics - not job-quality scores, hiring advice, or a live vacancy listing. A larger or higher-paid agency is not a better employer.