Robertshaw Millivolt Gas Oven Thermostat SPST Part Number 5300-414. Model number RX-14-30.

Specifications:
Single Pole Single Throw Type Switch (SPST)
200F to 550F (93C to 288C)
30" Capillary 5/16" x 3-1/2"
Nickel Bulb
Stem Length: 13/16"
Replacement for Brands:
461342 Allpoints
23586 Keating
023897 Keating
RX-14-30Robertshaw
The Robertshaw RX series is a single pole single throw (SPST) thermostat designed for todays demanding Millivolt/Milliamp direct current applications.
The RX thermostat features a hermetically sealed reed switch to provide durability and accuracy in the harshest environments.