DISTRIBUTOR-FIRST SUPPLY PARTNER · SINCE 1999 BRAND · ALKON
US-made fittings for every circuit — industrial bench and DOT air brake.
Made in the USA.
Alkon Corporation has been engineering and manufacturing pneumatic and hydraulic fittings, tubing, valves, and cylinders in North America for over 70 years. Headquartered in Fremont, Ohio, the company operates as a vertically integrated manufacturer — controlling the full production process from raw material through final testing — which is the foundation of the quality claim behind every DOT-marked fitting that leaves the plant.
Alkon's relevance in the compressed air fitting market rests on a regulatory distinction that most industrial-pneumatic distributors cannot match: the DOT air brake lane. Commercial-vehicle brake circuits are governed by FMVSS 49 CFR 571.106 and SAE J2494-3, and fittings used in those circuits must be genuinely compliant — not simply marked. Alkon performs in-house testing for leak resistance, vibration endurance, tensile strength, temperature extremes, and corrosion resistance, and holds ISO 9001:2015 certification across its operations. The Alkon triangle mark on a fitting is the shorthand for that verified compliance. Beyond the DOT lane, Alkon supplies domestically manufactured brass push- to-connect fittings for industrial pneumatic applications, giving customers a single US-origin supplier across both the vehicle and plant sides of their compressed air fitting requirements.
SPC carries Alkon as a line sourced direct, so DOT air brake fittings and industrial brass PTC are available from one distributor — no split orders between vehicle and plant supply chains.
DOT/FMCSA-compliant brake fittings are a legal requirement on commercial vehicles, not a preference.
Alkon manufactures in Fremont, OH.
Automotive Manufacturing → DOT air brake fittings for commercial vehicle assembly lines and service fleets. 
General Manufacturing → Brass push-to-connect fittings for industrial pneumatic machine circuits requiring US-made origin. 
Construction & Infrastructure → DOT-compliant air brake fittings for construction vehicle and heavy equipment brake circuits. 
Mining & Heavy Equipment → DOT air brake and industrial fittings for heavy mining and off-road equipment requiring domestic supply. 
Material Handling & Conveyors → Industrial brass PTC fittings on plant pneumatic circuits where domestic manufacture is specified. Yes — specify Alkon DOT air brake fittings (SAE J2494-3 / FMVSS 49 CFR 571.106). Industrial pneumatic fittings — regardless of brand or pressure rating — are not legally substitutable in a DOT brake circuit. Confirm tube OD and fitting configuration (straight, elbow, tee, union) from the vehicle brake circuit drawing.
Alkon manufactures in Fremont, Ohio — both the DOT brake line and the industrial brass PTC line. If domestic manufacture must be documented for a customer or contract requirement, Alkon covers both product types from a single US source.
Confirm tube outside diameter and fitting body style (straight, elbow, tee, reducer, union) from the application drawing. Alkon's DOT catalog covers standard tube sizes for commercial-vehicle brake tubing. The industrial brass PTC line covers standard inch tube sizes for shop-air circuits.
Tell us the spec and the account and we will come back with the right line, sourced through the distribution network.
—. We reply within one business day with pricing, lead-time, and configured parts.