Features:

Loose ring, stainless steel mounting brackets
Mounting holes match standard ?” snap discs
Aluminum disc cup
Last three numbers indicate cut-in temperatures on fan controls and cut-out temperatures on limits

Specifications:

Manufacturer: Emerson Climate-White Rodgers
Manufacturer Part Number: 3L01-180
Typical Applications: Snap Disc Limit - Automatic Reset SPST
Fixed Temperature Settings: Cut-In140°F (60°C)
Fixed Temperature Settings: Cut-Out180 deg. F (82 deg. C)
Switch Action: Open on Rise
Therm-O-Disc Type: 60T11
Therm-O-Disc Style: 610013
Material: Stainless Steel
Color: Silver