Various Orifice Sizes Available (Bored Hole which allows gas through nozzle). M5 Jets Injectors Nozzles - Various Orifice Sizes.
eBay
36pcs/1box Brass LP Gas Range Orifice Conversion Kit Replacement M6x0.75mm Gas Spray Tips 0.3-1.9mm Propane Burner Nozzle Set
Aliexpress UK
Orifice Size: 0.25mm. Gas Type: LPG. Jet Number (stamped): 25. LOTUS Bain-marie gas BM-74G (200602-200705), BM-74G (200706-), BM-74G (201201-), BM-78G (200602-200705), BM-78G (200706-), BM-78G (201201-), BM-94G (-201112), BM-94G (201201-), BM-98G (-201112), BM-98G (201201-), BMT-64G (-201112), BMT-64G (201201-), BMT-66G (-201112), BMT-66G (201201-).
eBay
36Pcs Range Stove Oven Orifice Conversion Kit, LP Propane Natural Gas Burner Jet Nozzle M6x0.75mm thread Gas Spray Tip 0.3-1.9mm
Aliexpress UK
Gas Type: LPG (Propane). Orifice Size: 0.18mm. Suitable for 160 series SIT pilot assemblies. SIT Part Number: 0.977.006. SIT 0977006. Jet Number (stamped): 18.
eBay
36pcs/1box Solid Brass LP Gas Range Orifice Conversion Replacement M6x0.75mm Gas Spray Tips 0.3-1.9mm Propane Burner Nozzle Kit
Aliexpress UK
Orifice Size: 0.25mm. Gas Type: LPG. SIT 0977123. Jet Number (stamped): 25. LOTUS Boiling pan gas BRF-74G (200602-), BRF-74G (201201-), BRF-78G (200602-), BRF-78G (201201-), BRF-94G (-200601-Vers1), BRF-94G (-200601-Vers2), BRF-94G (200602-), BRF-94G (201201-), BRF-98G (-200601-Vers1), BRF-98G (-200601-Vers2), BRF-98G (200602-).
eBay
1pc QCC1 Nut Propane Gas Fitting Adapter with 1/4" Male Pipe Thread Propane Quick Connect Fittings Hose Adapter Solid Brass
Aliexpress UK
Orifice Size: 0.30mm. Suitable for 160 series SIT pilot assemblies. Gas Type: LPG. Jet Number (stamped): 30. LOTUS Boiling pan gas BR-62G (Vers1), BR-62G (Vers2). ELFRAMO Fryer gas GM12, GM12-12, GM20, GM20-20, GM20-25, GM25, GM25-25-900, GM25-900, GM35, GM50, GM50-900.
eBay
Propane Brass Fittings Adapter Converts LP POL Service Valve to QCC1 Type1 Hose Propane Brass Fittings
Aliexpress UK
Will work for Propane G30, Butane G31, Calor G37 G50 LPG GPL GLP. LPG JET NOZZLE INJECTORFOR CONVERTING YOUR GAS APPLIANCE. SIZE IS: 53 Orifice Size 0.53mm. There is a +/- tolerance of 0.07mm allowed on jet sizes.
eBay
BSRA2406 2-in-1 accumulator metering Orifice match system capacity optimum liquid refrigerant and oil flow back to compressor.
Aliexpress UK
Orifice Size: 0.25mm. Gas Type: LPG. SIT 0977123. Jet Number (stamped): 25. LOTUS Boiling pan gas BRF-74G (200602-), BRF-74G (201201-), BRF-78G (200602-), BRF-78G (201201-), BRF-94G (-200601-Vers1), BRF-94G (-200601-Vers2), BRF-94G (200602-), BRF-94G (201201-), BRF-98G (-200601-Vers1), BRF-98G (-200601-Vers2), BRF-98G (200602-).
eBay
A25F-2Pack 40 Degree Pressure Washer Nozzle Guard With 4.0 Orifice,Stainless Steel Pressure Washer Nozzle,1/4In Quick Connect
Aliexpress UK
Orifice Size: 0.25mm. Suitable for 160 series SIT pilot assemblies. Gas Type: LPG. SIT Part Number: 0.977.123. Jet Number (stamped): 25. LOTUS Boiling pan gas BRF-74G (200602-), BRF-74G (201201-), BRF-78G (200602-), BRF-78G (201201-), BRF-94G (-200601-Vers1), BRF-94G (-200601-Vers2), BRF-94G (200602-), BRF-94G (201201-), BRF-98G (-200601-Vers1), BRF-98G (-200601-Vers2), BRF-98G (200602-).
eBay
Yiqianyuan 60/90/120 Degree Countersunk HSS Chamfering Metal Milling Tool 1&3 Fluting Cutter De-durring Orifice Rose Cove Drill
Aliexpress UK