Von Duprin 090040 Hex Dogging Shaft, Pack Of 2, 22/33A/35A/98/99/75/78, OLD # 971492, Non-Finished

The Von Duprin 090040 Hex Dogging Shaft is a direct replacement component designed to restore proper dogging function on a wide range of Von Duprin exit devices. Sold as a convenient pack of two, this shaft is engineered for compatibility with the 22, 33A, 35A, 98, 99, 75, and 78 series exit devices, making it a reliable choice for facility maintenance and repair. Previously identified under part number 971492, this shaft allows the push bar to be held in the retracted position using a standard hex key. Its durable construction ensures dependable performance in high-traffic commercial and institutional door hardware applications.

Features

• Genuine Von Duprin hex dogging shaft for exit device repair and replacement.
• Packaged as a set of two shafts for added value and convenience.
• Compatible with 22, 33A, 35A, 98, 99, 75, and 78 series exit devices.
• Supersedes the older part number 971492 for updated inventory compatibility.
• Enables hex-key dogging to hold the push bar in the depressed position.
• Non-finished design suited for use as an internal replacement part.

Functional Details

The hex dogging shaft works in conjunction with a hex key to mechanically hold the device's push pad in the retracted position, allowing free passage through the door without releasing the latch each time. This is commonly used during business hours to permit push-pull operation.