CompX National disc tumbler cam lock gives a keyed locking point for drawers and cabinet doors, so you can secure access where a compact cylinder fits the layout. The 1-3/16 inch cylinder length places the locking mechanism through typical door or drawer fronts, providing a positive cam throw on the back side. A bright brass finish presents a traditional hardware look that matches many existing brass components in cabinetry and furniture. The lock body uses a disc tumbler design, which establishes the keying pattern that controls who can operate the lock. Stock keying options such as KA, KD, and KDMKD define whether multiple locks share keys or operate on separate combinations, so you can align the lock choice with how many openings a single key should control. Key removal in both locked and unlocked positions affects how the key is handled during use.
The 1-3/16 inch cylinder length governs the combined thickness of the front and frame in an overlay application, because the cylinder must extend far enough for the nut to clamp behind the material. The note regarding a 3/4 inch front and 3/4 inch frame overlay construction highlights a case where this particular lock is not matched to that thickness, directing that situation to an NLC8053 lock and NLC7014-2C cam instead. A trim washer and spur washer for wood give bearing and bite around the cylinder hole, which helps seat the lock in wood-based cabinet doors and drawer fronts. The mounting nut secures the cylinder in place from the rear side, so the cam can operate without shifting under repeated use.
This C8053-C420A-3 cam lock is specified for drawers as well as right-hand or left-hand doors, so the same lock body serves multiple cabinet layouts in a shop or on a job site. The ability to work on both right-hand and left-hand doors gives flexibility when hinging changes from cabinet to cabinet, while keeping the lock specification consistent. Cams configured for lipped, overlay, or flush construction allow the installer to choose the straight or formed cam that matches the door or drawer style, aligning the cam throw with the back of the frame or strike. The 90 degree clockwise rotation of the cam is set by the stop washer, so the movement from locked to unlocked is predictable across all these applications.
Key removable in locked and unlocked positions changes how users move through a bank of drawers or doors, because the key can either stay in place during open access or be removed immediately after locking. Stock keying codes KA, KD, and KDMKD define whether locks are all keyed alike, all keyed different, or individually keyed and master keyed, which affects building access patterns and how many keys need to be carried. The straight cam with 1-1/2 inch extension provides extra reach behind lipped or overlay fronts, so the cam can engage a strike or frame even when the door or drawer overlays the cabinet. The formed cam with 1-1/8 inch extension and 11/32 inch offset shifts the contact point for flush construction, bringing the cam into the correct plane for a flush face without changing the lock body. The bright brass finish on the cylinder and trim components contributes to a coordinated appearance where other bright brass hardware is used, supporting a consistent look across a run of cabinets.
The C8053-C420A-3 unit is a CompX National disc tumbler cam lock, which uses a rotating cam to secure cabinet drawers or doors when the key turns the 1-3/16 inch cylinder.
This cam lock is stated for drawers and for right-hand or left-hand doors, so it functions on multiple cabinet openings while using the same basic cylinder and cam format.
The straight cam has a 1-1/2 inch extension, which lets the cam reach behind lipped or overlay fronts to pick up a frame or strike surface for locking.
The formed cam has a 1-1/8 inch extension with 11/32 inch offset, positioning the contact point to meet a flush door or drawer relationship with the cabinet frame.
The 90 degree clockwise rotation means the cam turns a quarter turn in the clockwise direction from locked to unlocked, giving a short, defined key travel for operation.
KA means all keyed alike to a specified key number, KD means all keyed different, and KDMKD means all keyed different and master keyed, which changes how groups of locks are operated.
The CompX National disc tumbler cam lock with 1-3/16 inch cylinder, bright brass finish, and 90 degree clockwise rotation ties one part number to drawers and both door hands. Cams for lipped, overlay, and flush construction allow the lock body to adapt to different cabinet face conditions. Stock keying options KA, KD, and KDMKD give control over how many locks respond to each key pattern. For applications that fall within the cylinder length guidance, this C8053-C420A-3 cam lock offers a defined cam travel and clear key-handling behavior for cabinet projects.
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