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 from the prior period; pay averages n/a, which pays below the federal-wide average.
- Headcount change
- -2.2%
- Pay change
- 0.0%
- Avg tenure
- 13.4 yrs
- Rank in family
- #3 of 4
FedScope read on Fuel Distribution System Mechanic (thin series)
On pay, the move between reporting periods was a small shift, within the range of normal year-to-year rounding rather than a broad pay-table change. On length of service, this series shows a mid-length average tenure, reflecting a mix of career employees and those who transfer or exit mid-career. Headcount moved down 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 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. The Plumbing and Pipefitting Family family totals 4,411 employees, and Fuel Distribution System Mechanic accounts for 3.0% of them.
Salary context · lean-pay series
How Fuel Distribution System Mechanic pay compares to the federal average
Occupation Average
n/a
Federal Average
$117,339
vs. Federal Avg
-100.0%
Where Fuel Distribution System Mechanic ranks on lean federal pay
Fuel Distribution System Mechanic earns more on average 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; the highlighted bar marks Fuel Distribution System Mechanic.
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
- Place Fuel Distribution System Mechanic pay in context with the pay-rank chart above, then compare it with another occupation.
- Turn an average salary into a grade: the GS pay grade tables show how grades and steps map to pay.
- Browse the Plumbing and Pipefitting Family family occupations in the table above, or search current Fuel Distribution System Mechanic postings on USAJOBS.
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.