Dayton 3G-OTH-74853 — Technical Specifications

Name: Dayton 3G-OTH-74853 59.5"H-W 4.5"L Aluminum Backdraft Damper: For 60 in Fan, For 60 in Nominal Duct Dia, Double Panel (MPN 5NKN8). Key specifications — Airflow Direction: Vertical; Blade Type: Flat Blade; Brand: DAYTON; Maximum Air Velocity: 2000 fpm; Mounting Position: Horizontal.
Brand: Dayton

The Dayton 5NKN8 is a universal-mount backdraft damper designed for use with a 60-inch fan and 60-inch nominal duct diameter. This flat-blade model features a 59.5-inch height by 4.5-inch length aluminum construction with a double-panel design, supporting vertical airflow direction and horizontal mounting. It has a maximum air velocity of 2000 fpm.

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Technical Specifications

Parameter	Value
Type	For 60 in Nominal Duct Dia, Double Panel
Brand	DAYTON
Blade Type	Flat Blade
Airflow Direction	Vertical
Mounting Position	Horizontal
Maximum Air Velocity	2000 fpm
Manufacturer Part Number	5NKN8