Section 1 - 3
Introduction
150 spacing is used for Peaks small format interchangeable cores only! There are no conventional cylinders
or other large format interchangeable cores in 150 spacing. 150 small format interchangeable cores cannot
be interkeyed with the 140 family.
The pin-to-pin spacing is 0.150" in original Best small format interchangeable cores. Peaks small format
interchangeable cores are available in 6-pin and 7-pin lengths, and will retrofit any Best style housing.
In 150, the first pin chamber is very close to the back. In 140,
there is a
1
/16" gap between the first chamber and the back.
There are seven pin chambers in 6-pin Peaks small format
interchangeable cores: six operating pins plus the patent pin,
a constant in all cylinders. There are eight pin chambers in
7-pin small format interchangeable cores.
150
140
Pin chambers
closer to
face of core.
face of Peaks small format
interchangeable cores
8402/3402 rim
8800/3800 capped SFIC
8900/6800 spring cover SFIC
All the cores and cylinders in the 140 family can be
keyed together in the same patent protected system.
8400/3400 key-in-knob
1
40 and 150 are the actual pin-to-pin spacings in thousandths of an inch. 140 spacing is used in the
interkeyable family of conventional cylinders, interchangeable cores and removable cores. All 140 products
are 6-pin. There are actually seven pin stacks in a Peaks 140 core or cylinder. One pin chamber is used for
the patent pin stack and is constant in all Peaks products. The remaining six chambers are used
for combinating.
8144/6140 Corbin Russwin LFIC
8244/6240 Yale (6 pin) LFIC
8401/3401 mortise
The Peaks 140 Family
Peaks 150 – Small Format Interchangeable Cores only
6340 Medeco LFIC
8444/6440 Schlage LFIC
8544/6540 Sargent LFIC
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