F5 Welding & Dozer Service Safety Record
DOT# 3626899 · Ardmore, OK 73401 · 5804901029
Legal name: N & N Oilfield Supplies LLC
Below-average safety record — scored 64/100. Elevated out-of-service rates or crash history.
Last inspected 01/15/2026
Safety Score Breakdown · 64/100 points
Lower scores are better. How is this calculated?
According to FMCSA records, F5 Welding & Dozer Service (DOT# 3626899) in Ardmore, Oklahoma has 30 inspections on record with 85 violations and a 40.0% vehicle out-of-service rate and 2 crashes. Safety grade: D (below-average safety record). Active common authority.
Out-of-Service Rates vs. National Average
An out-of-service (OOS) violation means a vehicle or driver was found unsafe to operate during a roadside inspection and was prohibited from continuing until the issue was corrected.
Violation Categories · 85 total violations
FMCSA groups violations into Behavioral Analysis and Safety Improvement Categories (BASICs). Each violation found during a roadside inspection is classified into a category that reflects the type of safety risk.
Inspection History · 30 records
FMCSA inspections range from Level 1 (full vehicle and driver examination) to Level 6 (enhanced motorcoach inspection). Level 1 is the most thorough; Levels 2 and 3 are walk-around and driver-only checks.
| Date | State | Veh OOS | Drv OOS |
|---|---|---|---|
| 01/15/2026 | OK | 0 | 0 |
| 10/30/2025 | OK | 0 | 0 |
| 09/12/2025 | OK | 0 | 0 |
| 08/08/2025 | OK | 0 | 0 |
| 08/01/2025 | OK | 0 | 0 |
| 07/03/2025 | OK | 0 | 0 |
| 06/30/2025 | OK | 1 | 0 |
| 06/30/2025 | OK | 0 | 0 |
| 06/13/2025 | OK | 0 | 0 |
| 06/04/2025 | OK | 0 | 0 |
Crash History · 2 records
| Date | State | Fatalities | Injuries | Tow-Aways |
|---|---|---|---|---|
| 07-JUL-25 | OK | 0 | 0 | 0 |
| 02-DEC-24 | OK | 0 | 1 | 0 |
Authority & Insurance
FMCSA operating authority permits interstate for-hire transportation. Carriers must maintain minimum insurance coverage levels to keep authority active. BIPD (bodily injury and property damage) insurance is required for all for-hire carriers.
| Type | Insurer | Coverage |
|---|---|---|
| BIPD/Primary | Employers Mutual Casualty Co. | $1,000 |
Fleet Profile
Power units include trucks, tractors, and other commercial motor vehicles registered to the carrier. Driver count reflects the total number of drivers reported on the carrier's MCS-150 filing.