![Nordyne 664077R Restrictor Orifice, .077 in. specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-664077r-specs.png?v=1793978271&width=1445)
The Nordyne 664077R is a genuine replacement restrictor orifice with a drill size of .077 in., stamped #77, used to meter gas flow to the burner in HVAC furnace equipment. Confirm the part number against your equipment's parts list before ordering.
Specifications
| Part Number | 664077R |
|---|---|
| Brand | Nordyne |
| Type | Restrictor Orifice |
| Orifice Size | .077 in. |
| Orifice Number | #77 |