Mail Systems N.W., Inc. has ceased operations, but correct replacement locks are available from Wilsonville Lockworks for all MSNW mailboxes.  Call 503.682.2323

Two types of locks were used during production.

National pin tumbler lock part #C8735 was used in the following stainless mailox models. Belaire models: B20, B20B, B16, B16B, BR16, BR16B, and Senator models: S16, S16B, SXL, SXLB.  If your mailbox is stainless steel, either natural stainless finish or black powder coat finish over stainless, this lock is required for your mailbox.

Tubular key cam lock was used in models B14B Belaire, S18B and S24B Senator.  The model number is inside the mail inlet door.  These models were built after 7.1.07  

The illustration below shows the assembly sequence for the Jin Tay tubular lock which was used on most B14B, S18B and S24B mailboxes. Some early tubular locks were Camlock Systems brand, which had a round key ring hole centered on the key bow. Note: the assembly sequence for both lock brands is identical, but only the Jin Tay lock requires the internal toothed spacer washer between the rotation limiter and the locking cam. The Camlock Systems locks do not require use of this spacer washer.

Save your locking cam for re-use when you remove your old lock

Caution: Hold the locking cam with a wrench while tightening the self-locking nut.