21-14498 - 80mm Mounting Flange 2PK Black
80mm mounting flange for Box Industries Extruded Aluminum Enclosures. Sold two per pack.
Mfr Name: Box Enclosures
Mfr Number: MF80BK2
21-14512 - Black Protective Rubber End Cap for B5 Extruded Aluminum Enclosures
Protective end caps for Box Industries B5 Extruded Aluminum Enclosures.
Mfr Number: EC5-BK
21-14514 - Nema 4 Sealing Kit SK1
Box Enclosures NEMA 4 SEALING KIT SK1
Mfr Number: SK1
21-14516 - Nema 4 Sealing Kit SK2
Box Enclosures NEMA 4 SEALING KIT SK2
Mfr Number: SK2
I have dealt with MCM Electronics a number of times and have been more than satisfied.