New and Replacement Office Chair Parts


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Source Distribution providing seats, seat backs, and seat pans for office chairs
Replacement Arms, Arm Pads
Office Chair Back Uprights
Office Chair Bases
Office Chair Casters
Office Chair Foot Rings
Suspa Gas Cylinders, Lifts
Office Chair Lift Covers, Cover Cans
Office Chair Mechanisms, Controls, Plates
Office Chair Seat Pan, Seat Back


Model: S3999-5

Spin Lift Cylinder - Standard Chair Height

  • Standard tapered top - same as standard gas lift cylinder
  • Spindle style manual height adjustment
  • 4.5" of height adjustment range - Up & Down
  • 2" (50mm) wide x 9" tall main support tube column with bottom taper length (after base engagement taper) of 38mm
  • To raise seat height - hold plastic center bushing while turning seat top counter-clockwise. To lower seat height - turn seat clockwise while holding plastic center bushing. The requirement of holding the plastic center bushing while adjusting keeps the spindle from adjusting seat height while the user is seated.
  • 11" overall length from end to end when fully compressed / retracted
  • 15.5" overall length from end to end when fully extended
  • Works with that will fit most standard chair bases
  • Black

Source Distribution

4674 Clay Ave S.W.
Grand Rapids, Michigan 49548, USA
Phone: 616-245-5447 Fax: 616-988-2720

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