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Carrier profile · USDOT 47552

NATIONAL WELDERS SUPPLY COMPANY INC

DBA AIRGAS NATIONAL WELDERS

391 power unitsCHARLOTTE, NC
CARRIER INACTIVEHAZMAT
Observed fleet · trailing 24 mo daily
391Power units
Self-reported · MCS-150
Trailers seen
None observed · 24 mo
Avg age (yr)
Awaiting decode
Operating authority52 yr active
since 1974
Insurance (BIPD)Unknown
FMCSA L&I
Vehicle OOS · 24mo%
22.26% nat'l
Crashes · fatal1
clean 24 mo
Vektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet typeIdentity

Asset-based

391 power units. Brokers price each fleet type apart.

Fleet age vs peersDecoding

Awaiting VIN decode

Identity stabilityStable

52 yr unchanged

Same registration since 1974 — no chameleon / reincarnation signal.

AI readCarrier, 52-yr authority unrated.Full read

Is NATIONAL WELDERS SUPPLY COMPANY INC safe to work with?

Is NATIONAL WELDERS SUPPLY COMPANY INC safe to load? NATIONAL WELDERS SUPPLY COMPANY INC (USDOT 47552) is an inactive asset-based motor carrier based in CHARLOTTE, NC, operating 391 power units and 395 drivers. Operating authority has been active 52 years (past the 24-month broker-confidence threshold). FMCSA has not assigned a safety rating. Vektor rates it unrated (50/100), with the leading concern: usdot registration inactive. Source: FMCSA SAFER/MCMIS, last updated 2026-06-13.

FMCSA fields + Vektor analysis · updated 2026-06-13
01

Safety

Roadside inspections, BASICs & crash history

Out-of-service rate· trailing 24 months vs national benchmark

No roadside inspections on record.

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02

Authority & insurance

Can they legally + adequately haul your load?

Insurance continuity· insurer · policy · lapses

No insurance filing history on record.

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03

Equipment & fleet

VIN-decoded · NHTSA vPIC

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150)
391
Observed power (24 mo)
Trailers (towed)

Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.

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04

Operations & lanes

Revealed by inspection density · 24 mo

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base
CHARLOTTE, NC
5311 SEVENTY SEVEN CENTER DRIVE
Density
fewermore
Shade = roadside inspections, last 24 mo.
See the full operating map — state density, top lanes
05

Network & fraud

Affiliated entities & reincarnation signals · for review, not a verdict

Shares a registration email domain with other carriers

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06

Identity & contact

FMCSA census + L&I dossier

Location

Mailing address
P O BOX 31007, CHARLOTTE, NC, 28231
Operation
Interstate· Hazmat

Contact

Fax
(704) 391-7873
Web domain
airgas.com

Registration

Officers
Steve Marinelli · Tony Martin
USDOT / docket
47552
First registered
06/01/1974
Last MCS-150
06/28/2013 · 8,275,195 mi (2012)
FMCSA safety rating
Not rated
D-U-N-S
3162310

Fleet (self-reported · MCS-150)

391Power units
395Drivers
395CDL drivers
8,275,195Annual mileage
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07

Federal activity

Daily-captured FMCSA licensing & insurance changes — monitored by Vektor

Federal record activity· monitored daily by Vektor

No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.

Open the full federal-record activity feed
08

Reviews

Verified broker, shipper & driver reviews — moderated

Performance ratings only — never the Vektor risk score
No verified reviews yet

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09

Frequently asked

What is NATIONAL WELDERS SUPPLY COMPANY INC's USDOT number?

NATIONAL WELDERS SUPPLY COMPANY INC's USDOT number is 47552.

Is NATIONAL WELDERS SUPPLY COMPANY INC authorized to operate?

As of 2026-06-13, NATIONAL WELDERS SUPPLY COMPANY INC is inactive in the FMCSA register.

How big is NATIONAL WELDERS SUPPLY COMPANY INC's fleet?

NATIONAL WELDERS SUPPLY COMPANY INC operates 391 power units and 395 drivers per its most recent MCS-150 filing.

Where is NATIONAL WELDERS SUPPLY COMPANY INC based?

NATIONAL WELDERS SUPPLY COMPANY INC is based in CHARLOTTE, NC.