Type schematic (not to scale) of a MIG contact tip, labelled with the printed wire size cited in the specifications below; this part's tip outside diameter is not in our sources.

CM Industries R403-52 MIG contact tip

CM Industries R403-52 Contact Tip, .052": wire size .052 in; cross-reference: Tregaskiss 403-52.

MIG contact tips · All CM Industries part numbers

A copper MIG welding contact tip with a threaded end and a small wire bore, on a plain grey surface — A typical MIG contact tip — not necessarily this part. Photo: “Mig 2” by Victorvs, CC0, via Wikimedia Commons (resized).

Specifications

Wire size	.052 in

All specifications: Single source printed by CM Industries; not corroborated

Cross-references

	Part	Manufacturer	Wire size	Relationship	Evidence
	403-52	Tregaskiss	.052 in	OE number	Single source stated by CM Industries; not corroborated

CM Industries prints CM Part # R403-52 against OEM Part # 403-52

Related parts

Sources

CM Industries — Tregaskiss® Complete Parts ListCM Industries · cross-reference tool · row 12 · supports cross-references, specifications