This is a Custom Aluminum ASA style flange, 3-1/2″ OD, bored
1.77″ inside diameter
(4) 1/4″ bolt holes on a 3″ bolt circle

O-Ring groove 0.140″ wide, 0.085″ deep with a 2.180″ inside diameter

***MPN
***OEM Brand Unmarked
***SKU*** 40025

Custom vacuum chamber view port holder flange (Aluminum)

Flange OD is 14″ and will hold a glass port of up to 6.9 ” in diameter x 1/2″ thick.
(8) 7/16″ holes on a 13-1/4″ bolt circle
Includes 0-ring
Please call with any questions.

BMI Surplus, Inc. is your #1 resource for used, new, pre-owned,
recycled & surplus vacuum equipment!
Buy online or give us a call at 781-871-8868. We’re here ready
to help you!
**Shipping & Freight fees are dependent on your location. We
will provide a freight quote to meet your individual needs and
work with you if you prefer to use your own carrier. We have 30
years of experience shipping sensitive scientific instruments &
industrial equipment. Be assured we ship with the utmost care!
***MPN
***OEM Custom
***SKU*** 40022

MDC 6″ ASA Flange, 11″ OD, 6.02″ Bore
Stainless steel, bored for 6″ tube.

In original package.

BMI Surplus, Inc. has a huge inventory of used, new and pre-owned Vacuum Flanges and Fittings for sale.
We will work with you individually to find the perfect set up for your application.

Buy online or give us a call at 781-871-8868. We have experienced customer service representatives standing by ready to help you!

BMI Surplus, Inc. is a dealer in used and sometimes new Surplus Scientific and Industrial Equipment – we cater to clients in search of items to be used for specific applications.
We do not offer a guarantee as many of our items are purchased by professionals in need of parts and pieces.
You will find many of our items listed on our website as untested or as parts or repair units even though in they are in good used condition.

**Shipping, Handling and Freight fees are dependent on your location.
We will provide a freight quote to meet your individual needs and work with you if you prefer to use your own carrier.
We have 32 years of experience shipping sensitive scientific instruments and industrial equipment!

Don’t see what you are looking for? Use our orange search box on the top right hand corner of this page to customize your search.
***MPN 160036 Ref# ASA-11
***OEM MDC
***SKU*** 40021

Vacuum Sightport Optical Window –

11-1/2″ diameter X 11/16″ thick
The material of the glass is unknown
There is a small dark occlusion in the part, along with some scratches.
***MPN
***OEM Brand Unmarked
***SKU*** 40009

Vacuum Sightport Optical Window –
12″ diameter X 1″ thick
Material of the glass is unknown
There is an occlusion (about a 1/4″ x 1/2″) on the outer most edge of the part, also some minor scratches.
***MPN
***OEM Brand Unmarked
***SKU*** 40008

Vacuum Sightport Optical Window-
11-1/2″ diameter X 11/16″ thick
Glass material is unknown
***MPN
***OEM Brand Unmarked
***SKU*** 40007

Vacuum Sightport Optical Window –
11-1/2″ diameter X 11/16″ thick
Window came from a working vacuum chamber.
The specific material of the glass is unknown.
***MPN
***OEM Brand Unmarked
***SKU*** 40003

Vacuum Sightport Optical Window –
12″ diameter X 11/16″ thick
This window was used on a working vacuum chamber.
Specific glass material is unknown.
***MPN
***OEM Brand Unmarked
***SKU*** 40002

Unit is a Leybold 23950251 O-Ring (Pack of 4).

***MPN 23950251
***OEM Leybold-Heraeus
***SKU*** 38231

This is a Whitey SS-L33VS4 Ball Valve
***MPN SS-L33VS4
***OEM Whitey
***SKU*** 39890

This is an 8″ ANSI Blank Flange.
Stainless steel
12-1/2″ OD
(8) – 7/16″ bolt holes on a 11-1/4″ bolt hole circle
5/8″ thick
5/16″ wide X 3/16″ deep o-ring groove.

BMI Surplus, Inc. has a huge inventory of new, pre-owned, recycled Vacuum Flanges and Fittings for sale.
We will work with you individually to find the perfect set up for your application.

Buy online or give us a call at 781-871-8868. We have experienced customer service representatives standing by ready to help you!

BMI Surplus, Inc. is a dealer in used and sometimes new Surplus Scientific & Industrial Equipment – we cater to clients in search of items to be used for specific applications.
We do not offer a guarantee as many of our items are purchased by professionals in need of parts and pieces.
You will find many of our items listed on our website as untested or as parts or repair units even though in they are in good used condition.

**Shipping, Handling & Freight fees are dependent on your location.
We will provide a freight quote to meet your individual needs and work with you if you prefer to use your own carrier.
We have 32 years of experience shipping sensitive scientific instruments & industrial equipment!

Don’t see what you are looking for? Use our orange search box on the top right hand corner of this page to customize your search..
***MPN
***OEM Brand Unmarked
***SKU*** 29497

This is a Kurt J. Lesker QF25-100-SRV Centering Ring SS Viton O-Ring

This item is new in packaging

Manufacturer Description

These centering rings are used for mating KF flanges and include both the centering ring and o-ring.
The KF (QF) flange is used for through or foreline vacuum plumbing and for simple HV chamber ports.
***MPN QF25-100-SRV
***OEM Kurt J Lesker Co
***SKU*** 37935