Type schematic (not to scale) of a MIG nozzle, labelled with the printed tip position and size cited in the specifications below; this part's outside diameter, bore and length are not in our sources.

CM Industries C21T-37 MIG nozzle

CM Industries C21T-37 Nozzle, Tapered, Flush, 3/8": size 3/8 in, tip position Flush; cross-reference: Tweco 21T-37.

MIG nozzles · All CM Industries part numbers

A cylindrical nickel-plated MIG welding nozzle with a blue insulator ring, lying on a white surface — A typical MIG nozzle — not necessarily this part. Photo: “Mig 1” by Victorvs, CC0, via Wikimedia Commons (resized).

Specifications

Size	3/8 in
Tip position	Flush

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

Cross-references

	Part	Manufacturer	Size	Tip position	Relationship	Evidence
	21T-37	Tweco	3/8 in	Flush	OE number	Single source stated by CM Industries; not corroborated

CM Industries prints CM Part # C21T-37 against OEM Part # 21T-37

Related parts

Sources

CM Industries — Tweco® Complete Parts ListCM Industries · cross-reference tool · row 81 · supports cross-references, specifications