Close

Please select your country or region to be
directed to the appropriate Lesker site.

Representative Image

Zero- Length Reducer Flanges (Metric)

Adapt two different-size knife-edge flanges that need to be bolted together.

Reducer Flange Features:

  • All small flanges have blind tapped bolt holes — most large flanges have through-holes (where the two flanges have similar diameters, both are tapped)
  • Part numbers ending with the letter "M" represent metric-tapped flanges
ISO Standard KJLC flanges & gaskets are compatible with ISO3669-2017, but more importantly are compliant to the stricter requirements of ASTM E2934-10.

Contact Us
To speak with someone directly, please call +1 412 387 9200 or email international@lesker.com.
Got VacuCADSM?
VacuCAD is a free library containing thousands of 2D CAD drawings (in DXF format) and 3D Models (in STP format) for many of our standard vacuum components and chambers. Please Log in

Ordering Table

(Click column headers to sort data)

Flange Selection Guide
With a variety of flanges to choose from, the Flange Selection Guide is designed to help you find one to meet your vacuum requirements. Shop Now!
Can't find the flange you need or want a custom configuration? Please call us at +1 412 387 9200 or email international@lesker.com with your inquiry.

Accessories Table

Description For Per Package Manual
VacuCADSM
Part Number Price In Stock Add Item
Description For Per Package Manual
VacuCADSM
Part Number Price In Stock Add Item
1/4 Hard OFHC Copper Gasket All 1-1/3" (DN16CF) Flanges 10 --
(please log in)
GA-0133
$21.05 In Stock
1/4 Hard OFHC Copper Gasket All 2-1/8" (DN25CF) Flanges 10 --
(please log in)
GA-0212
$24.05 In Stock
1/4 Hard OFHC Copper Gasket All 2-3/4" (DN35-DN40CF) Flanges 10 --
(please log in)
GA-0275
$27.35 In Stock
1/4 Hard, 1.53" I.D.* OFHC Copper Gasket All 2-3/4" (DN35-DN40CF) Flanges 10 --
(please log in)
GA-0275LB
$27.35 In Stock
1/4 Hard OFHC Copper Gasket All 3-3/8" (DN50CF) Flanges 10 --
(please log in)
GA-0337
$31.10 In Stock
1/4 Hard OFHC Copper Gasket All 4-1/2" (DN63CF) Flanges 10 --
(please log in)
GA-0450
$37.20 In Stock
1/4 Hard OFHC Copper Gasket All 4-5/8" (DN75CF) Flanges 10 --
(please log in)
GA-0462
$44.25 In Stock
1/4 Hard OFHC Copper Gasket All 6" (DN100CF) Flanges 10 --
(please log in)
GA-0600
$55.30 In Stock
1/4 Hard OFHC Copper Gasket All 6-3/4" (DN125CF) Flanges 10 --
(please log in)
GA-0675
$66.35 In Stock
1/4 Hard OFHC Copper Gasket All 8" (DN160CF) Flanges 10 --
(please log in)
GA-0800
$78.40 In Stock
1/4 Hard OFHC Copper Gasket All 10" (DN200CF) Flanges 10 --
(please log in)
GA-1000
$96.50 In Stock
1/4 Hard OFHC Copper Gasket All 12"(DN250) CF Flanges 1 --
(please log in)
GA-1200
$61.35 In Stock
1/4 Hard OFHC Copper Gasket All 13-1/4" CF Flanges 1 --
(please log in)
GA-1325
$54.30 In Stock
M6—1.00 x 25 MM Reducer Bolt Set 2-1/8" (DN25CF) and 2-3/4" (DN35-DN40CF) Smaller CF Flange 25 --
(please log in)
HBKM6X25
$33.70 In Stock
M8—1.25 x 30 MM Reducer Bolt Set 3-3/8" (DN50CF) Smaller CF Flange 25 --
N/A
HBKM8X30
$12.40 In Stock
M8—1.25 x 35 MM Reducer Bolt Set 4-1/2" (DN63CF) Smaller CF Flange 25 --
(please log in)
HBKM8X35
$16.10 In Stock
M8—1.25 x 35 MM Reducer Bolt Set 4-5/8" (DN75CF) Smaller CF Flange 25 --
(please log in)
HBKM8X35
$16.10 In Stock
M8—1.25 x 35 MM Reducer Bolt Set 6" (DN100CF) Smaller CF Flange 25 --
(please log in)
HBKM8X35
$16.10 In Stock
M8—1.25 x 35 MM Reducer Bolt Set 8" (DN160CF) Smaller CF Flange 25 --
(please log in)
HBKM8X35
$16.10 In Stock
M8—1.25 x 35 MM Reducer Bolt Set 10" (DN200CF) Smaller CF Flange 25 --
(please log in)
HBKM8X35
$16.10 In Stock
5/16—24 x 3" Reducer Bolt Set 13-1/4" Larger CF Flange 25 --
N/A
HBS31224300
$50.25 In Stock
M6—1.0 x 35 MM Reducer Bolt Set 2-3/4" (DN35-DN40CF) Larger CF Flange 25 --
(please log in)
HBSM6X35
$17.70 In Stock
M8—1.25 x 50 MM Reducer Bolt Set 6" (DN100CF) Larger CF Flange 25 --
N/A
HBSM8X35
P.O.R. Call for Availability
M8—1.25 x 50 MM Reducer Bolt Set 6-3/4" (DN125CF) Larger CF Flange 25 --
N/A
HBSM8X35
P.O.R. Call for Availability
M8—1.25 x 50 MM Reducer Bolt Set 8" (DN160CF) Larger CF Flange 25 --
N/A
HBSM8X35
P.O.R. Call for Availability
M8—1.25 x 45 MM Reducer Bolt Set 4-1/2" (DN63CF) Larger CF Flange 25 --
(please log in)
HBSM8X45
$34.20 In Stock
M8—1.25 x 45 MM Reducer Bolt Set 4-5/8" (DN75CF) Larger CF Flange 25 --
(please log in)
HBSM8X45
$34.20 In Stock
M8—1.25 x 60 MM Reducer Bolt Set 10" (DN200CF) Larger CF Flange 32 --
(please log in)
HBSM8X60
$44.25 In Stock
M4—0.7 x 16 MM Reducer Bolt Set 1-1/3" (DN16CF) Smaller CF Flange 25 --
N/A
SBKM4X16S4-25
$9.65 Call for Availability
Gasket Clips for CF Flanges All CF Flanges 10 Download PDF
N/A
VGC0275S
P.O.R. Call for Availability
Gasket Removal Tool All CF Flanges 1 --
N/A
VZGRT
$38.20 In Stock
4 oz. Tube Anti-Seize Thread Lube All CF Flanges 1 --
N/A
VZTL-4OZ
P.O.R. In Stock