Size:16.5" Office Chair Swivel Mechanism replacement part: Our #1 Selling mechanism! For Small, Medium and Large chairs. This manual dual spring swivel and tilting mechanism is ideally purchased when desiring to keep an older style 5 legged chair base. It is available in 6 sizes from 13 1/2" to 20 1/2" hole to hole length. The bell on the #475 bell is 2 1/4", intended for 5 leg bases. Specifications: Hole to hole length-16 1/2" Overall length-17 1/2" Variable width 6"-7" Height of exposed 1" dia. Acme threads-8 1/2" plus 3" No Threads Hardened steel thrust washer
P**4
Read the instructions carefully before installing.
My swivel chair comes as a set with my oak desk and bookcase and draws. I had difficulty finding the right size as it is over 20 years old and still in excellent condition. This just about fit the base and works like a charm and I can also tilt or swivel around without any squeaks or difficulty. A bit expensive but you pay for quality.
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