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Mechanisms

 

Seat Plates

Picture
Model: S4755
Aluminum Release Block
  • Accepts standard top taper of gas cylinder
  • 3” (76mm) square block
  • 2.1” (54mm) square mounting hole pattern
  • Also available in black painted finish
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View Drawing
View Drawing

Picture
Model: S5433-A
Pedestal Plate
  • Accepts 50mm gas cylinder
  • 6.875" (175mm) square plate
  • 5.5" (140 mm) square mounting hole pattern
  • 3.15" (80mm) center hub height
  • Black
  • MADE IN THE U.S.A.
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Picture
View Drawing

Picture
Model: S4650
Flat Seat Plate
  • Accepts standard gas cylinder
  • 6.6" (168mm) square plate
  • 5.375" (137mm) square mounting hole pattern
  • Lever for gas cylinder activation
  • Flat
  • Black
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Picture
View Drawing

Picture
Model: S4239
Pitched Seat Plate
  • Accepts standard gas cylinder
  • 6.6" (168mm) square plate
  • 5.375" (137mm) square mounting hole pattern
  • Lever for gas cylinder activation
  • 3 degree pitch
  • Black
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Picture
View Drawing

Picture
Model: S4132
Pitched Seat Plate
  • Accepts standard gas cylinder
  • 7" x 8" (178mm x 203mm) plate
  • 6" x 7" (152mm x 178mm) mounting hole pattern
  • Lever for gas cylinder activation
  • 3 degree pitch
  • Black
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Picture
View Drawing

Picture
Model: S3974
Flat Seat Plate
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Accepts 2.25" wide back upright
  • Works with S4513-5 back upright
  • Threaded hand wheel holds back upright in place
  • Flat
  • Black
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Picture
View Drawing

Picture
Model: S2886
Pitched Seat Plate
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Accepts 2.25" wide back upright
  • Works with S4513-5 back upright
  • Threaded hand wheel holds back upright in place
  • 2 degree pitch
  • Black
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Picture
View Drawing
 

Tilt Control Mechanisms - Single Function

Picture
Model: S2979
Tilt Control Mechanism
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Tilt Lock Feature - push lever to lock - pull to unlock
  • Hand wheel for tilt tension adjustment
  • Black
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Picture
View Drawing

Picture
Model: S2979-HD
Heavy Duty Tilt Control Mechanism
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Tilt Lock Feature - push lever to lock - pull to unlock
  • Hand wheel for tilt tension adjustment
  • Black
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Picture
View Drawing

Picture
Model: S4389
Tilt Control Mechanism without Lever
  • Accepts standard gas cylinder
  • Popular for fixed height applications
  • Hand wheel for tilt tension adjustment
  • Black
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Picture
View Drawing

Picture
Model: S4264
Tilt Control Mechanism
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Tilt Lock Feature - push lever to lock - pull to unlock
  • Hand wheel for tilt tension adjustment
  • Black
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Picture
View Drawing

Picture
Model: S4567
Tilt Control Mechanism without Lever
  • Accepts standard gas cylinder
  • Popular for fixed height applications
  • Hand wheel for tilt tension adjustment
  • Black
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Picture
View Drawing

Picture
Model: S4388
Knee Tilt Control Mechanism
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Tilt Lock Feature - push lever to lock - pull to unlock
  • Hand wheel for tilt tension adjustment
  • Black
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Picture
View Drawing
 

Tilt Control Mechanisms - Multi-Function

Picture
Model: S4093-3
Back Tilt Control Mechanism
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Lever for back tilt function
  • Works with S4683 back upright
  • Black
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Picture
View Drawing

Picture
Model: S3608
Seat & Back Tilt Control Mechanism
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Lever for back tilt function - locks in any position
  • Lever for seat tilt function - locks in any position
  • Lever for forward seat tilt function
  • Hand wheel for tilt tension adjustment
  • Accepts Euro-style back upright
  • Works with S4139 back upright
  • Black
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Picture
View Drawing

Picture
Model: S4400
Seat & Back Tilt Control Mechanism w/ Seat Slider
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Lever for back tilt function - locks in any position
  • Lever for seat tilt function - locks in any position
  • Lever for forward seat tilt function
  • Lever for seat slide function
  • Hand wheel for tilt tension adjustment
  • Accepts Euro-style back upright
  • Works with S4139 back upright
  • Black
DOWNLOAD SPEC SHEET
Picture
View Drawing

Picture
Model: S4118
Back Tilt Control Mechanism
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Lever for back tilt function - locks in any position
  • Accepts straight 2.25" wide back upright
  • Works with S5031-A, S4623, and S4793-2 back upright
  • Black
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Picture
View Drawing

Picture
Model: S4386
Seat & Back Tilt Control Mechanism
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Lever for seat/back tilt function - locks in any position
  • Accepts straight 2.25" wide back upright
  • Works with S5031-A, S4623, and S4793-2 back upright
  • Black
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Picture
View Drawing

Picture
Model: S4149
Seat & Back Tilt Control Mechanism
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Lever for back tilt adjustment - locks in any position
  • Lever for seat tilt adjustment - locks in any position
  • Accepts straight 2.25" wide back upright
  • Works with S5031-A, S4623, and S4793-2 back upright
  • Black
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Picture
View Drawing

Picture
Model: S4369
Back Tilt Control Mechanism
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Lever for back tilt function - locks in any position
  • Accepts Euro-style back upright
  • Works with S4139 back upright
  • Black
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Picture
View Drawing

Picture
Model: S4415
Seat & Back Tilt Control Mechanism
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Lever for seat/back tilt function - locks in any position
  • Accepts Euro-style back upright
  • Works with S4139 back upright
  • Black
DOWNLOAD SPEC SHEET
Picture
View Drawing

Picture
Model: S4370
Seat & Back Tilt Control Mechanism
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Lever for back tilt adjustment - locks in any position
  • Lever for seat tilt adjustment - locks in any position
  • Accepts Euro-style back upright
  • Works with S4139 back upright
  • Black
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Picture
View Drawing
 
Picture
Model: S4499
Seat & Back Tilt Control Mechanism
  • Accepts standard gas cylinder
  • Lever for gas cylinder activation
  • Lever for seat & back tilt adjustment - four locking positions
  • Spring tension adjustment
  • Seat slider
  • Black
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Picture
View Drawing

Specialty Items


Picture
Model: S4857-A6
Flat Seat Plate
  • Accepts 50mm gas cylinder
  • Accepts 2.25" wide back upright
  • Works with S4513-5 back upright
  • Threaded hand wheel holds back upright in place
  • Flat
  • Black
DOWNLOAD SPEC SHEET
Picture
View Drawing

Picture
Foot Activated Cylinder Release Kit
Counter clockwise from top left:
  • Assembled kit with optional S4154 base and S4857-A6 seat plate
  • S291 - 11" foot ring
  • S290-2 - 50 mm to 17-4 adapter
  • S5296-A2 - Parts Pack: 3 stop bolts, 3 washers, 1 spring, 1 pin, 1 rubber washer
  • S5171-A - 2.25" column, 9" long with column cover
  • Column comes in multiple lengths and finishes
  • Works with most 50mm bases and gas cylinders
  • MADE IN THE U.S.A.
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Copyright © 2023  Source Distribution, Inc.
  • Home
  • Products
    • Arms >
      • Arm Pads
      • Adjustable Arms
      • Loop Arms
    • Back Uprights
    • Bases >
      • Aluminum
      • Plastic
      • Steel
    • Casters + Glides >
      • Casters
      • Glides
    • Foot Rings
    • Gas Cylinders >
      • Standard
      • Non-Rotating
      • Spin Lifts
    • Lift Covers
    • Mechanisms >
      • Seat Plates
      • Single Function
      • Multi-Function
    • Seats + Backs
    • Side Chairs
    • Swivels
    • Other >
      • Bushings + Hardware
      • Levers + Handles
      • Leg Caps + Spacers
      • Hinges
      • Lumbar
  • Catalog
  • About
  • Contact
  • Search