Schlage 43-005 - 5" Backset Link, D, ND Series (Use with 2-3/4" Latch)

The Schlage 43-005 backset link is the part for that. It carries a D Series or ND Series lock out to a 5 inch backset, and it is specified to run with a 2-3/4 inch latch. Standard cylindrical prep is 2-3/8 or 2-3/4 inches, so any opening where the lock centerline lands at 5 inches needs the link sitting between the lock and the latch.

Deltana lists a Grade 1 regular latch at 2-3/4 inch backset in two functions: the G1RLE275 for entry and the G1RLP275 for passage/privacy. Both carry a Grade 1 rating, and the backset is the same, so the function is the deciding factor - entry for a keyed opening, passage/privacy for a door that does not take a key. That is a different purchase from the Schlage 43-005, which is a replacement part for the D and ND series - a 5 inch backset link used with a 2-3/4 inch latch rather than a standalone latch for a bored opening.

One part number covers both lines. The 43-005 is a certified Schlage replacement part for D Series and ND Series locks, and it is a commercial part rather than a residential one.

The backset link is what you get. The 43-005 is used with a 2-3/4 inch latch, which is its own part, so if the existing latch is not being reused you need to order it alongside the link. Both are Schlage replacement parts for the D and ND Series.

Only on the openings where the lock has to sit 5 inches from the door edge. On a door prepped at the usual 2-3/8 or 2-3/4 inch backset you don't need the link at all. Where you do, the 43-005 keeps you inside the same lock line: it is a certified Schlage part that suits both D Series and ND Series locks, it is commercial rather than residential, and it runs with a 2-3/4 inch latch.

They fill different roles, so one does not stand in for the other. The Schlage 43-005 is a 5 inch backset link for the D and ND series, used with a 2-3/4 inch latch to carry that latch out to a 5 inch backset. The Deltana G1RLE275 is a Grade 1 regular latch with an entry function at a 2-3/4 inch backset - a complete latch assembly, not a part that extends one. If the door is bored at 2-3/4 inches and the latch itself is what needs replacing, the G1RLE275 is the latch to look at. If the prep calls for a 5 inch backset and the lock is a Schlage D or ND, the 43-005 is the link that works with the 2-3/4 inch latch.

A 2-3/8 inch bore is a different prep than what the Schlage 43-005 addresses - the 43-005 is a 5 inch backset link for the D and ND series, paired with a 2-3/4 inch latch. For a 2-3/8 inch backset, Deltana offers two Grade 1 regular latches at that dimension: the G1RLE238 with an entry function and the G1RLP238 with a passage/privacy function. Both are Grade 1, and the choice between them comes down to whether the opening needs to be keyed for entry or is a passage or privacy door.

The Schlage 43-005 is built around the D and ND series - it is a 5 inch backset link used with a 2-3/4 inch latch. For a sidelite, the Accentra YSSL10 is a security sidelite auxiliary latch with an ADA compliant thumbturn, listed for a 1-3/4 inch door thickness and carrying a fire rating. That combination of a sidelite-specific body, the ADA thumbturn, and the fire rating is what makes it the one to price out for a glass front or sidelite panel, where a series link for a bored commercial lock does not apply.

Yes - the Lockey M230 is a mechanical keyless digital combination deadlocking spring latch lock with an adjustable backset, listed for doors 1-1/8 inch to 2 inch thick. It is a complete lock with the combination entry built in, so nothing has to be keyed and no cylinder is involved, and the adjustable backset means the backset is set at install rather than fixed at purchase. The Schlage 43-005 is a different kind of buy: a commercial replacement part for the D and ND series that links a 2-3/4 inch latch out to a 5 inch backset on a lock you already have in the door.

The 43-005 is a series part - a 5 inch backset link for the D and ND series, used with a 2-3/4 inch latch - so it is matched to those Schlage locks. Doors on other hardware take their own parts. Dexter's deadlatch for the C1000 series is likewise built to that series and is the one to order for a C1000 lock. For standard bored openings that just need a latch, Deltana's Grade 1 regular latches are sold by backset and function: G1RLE238 and G1RLE275 for entry at 2-3/8 inch and 2-3/4 inch, G1RLP238 and G1RLP275 for passage/privacy at the same two backsets. Walking the building and recording the lock series on each door, plus the backset, is what tells you which of these goes on the order.