For Kimball office furniture

K1: Code series 001-125
K2: Code series 126-250
K3: Code series 251-375
K4: Code series 376-500

Available from the following distributors:

Accredited Lock Supply   800-652-2835
Blue Dog Keys   407-774-0100
Daniel Pehr Inc.  212-732-3034
E. L. Reinhardt  800-328-1311
The Locksmith Store  847-364-5111
L.V. Sales  800-894-5397
Wholesale 4  800-547-0921