Sargent 78-0009 Hub Spacer (Pack of 3) — Genuine OEM Replacement for 8200 & 7800 Series Mortise Locks

The Sargent 78-0009 Hub Spacer is a genuine OEM replacement part designed for Sargent 8200 Series and 7800 Series mortise locks. Sold as a convenient pack of 3, this hub spacer ensures proper internal alignment and function within the mortise lock chassis. Sourced directly from Sargent, this is not an aftermarket substitute — it is the same component used in original factory assembly, making it the trusted choice for facility managers, locksmiths, and door hardware professionals performing maintenance or repair on Sargent mortise lock installations.

Institutional-Grade Features & Benefits

• Genuine Sargent OEM Part: Manufactured to exact factory tolerances for the Sargent 8200 and 7800 Series mortise lock product lines — no guesswork on fit or compatibility.
• Correct Hub Geometry: Engineered as a hub spacer to maintain proper internal spacing and engagement within the mortise lock case, supporting reliable lever or trim actuation.
• Pack of 3 Value: Supplied in a pack of three, ideal for stocking a maintenance supply kit, servicing multiple locks in a single visit, or keeping spares on hand for high-traffic commercial door applications.
• Mortise Lock Application: Specifically designed for mortise lock configurations — the standard in commercial, institutional, and high-security door hardware installations where durability and code compliance are required.
• Minimizes Downtime: Using the correct OEM replacement hub spacer prevents premature wear, improper lever return, or lock malfunction that can result from ill-fitting aftermarket parts.
• Trusted Brand: Sargent is an ASSA ABLOY brand with a long-standing reputation in commercial door hardware; the 78-0009 carries that same standard of quality into every repair and retrofit application.

Technical Details

Applications

The Sargent 78-0009 Hub Spacer is appropriate for any service, repair, or preventive maintenance scenario involving Sargent 8200 Series or 7800 Series mortise locks in commercial buildings, educational facilities, healthcare institutions, government buildings, and other high-traffic environments. When a mortise lock begins to exhibit internal operational issues related to hub engagement or spacing, replacing the hub spacer with the correct OEM part — part number 78-0009 — restores proper function quickly and reliably. Having a pack of three on hand ensures your team is prepared for multiple door openings in a single service call.