AMAT 0020-00846 Glass, 4" View Port, 1773904 AMAT 0020-00846 Glass, 4" View Port, 1772952 AMAT 0020-00846 Glss, 4" View Port, 167451AMAT 0240-00810 NO Endpoint Viewport Kit, 0020-00424, 0020-00846, 159761AMAT 0020-00846 Glass, 4" View Port, 1585003 AMAT 0020-00846 Glass, 4" View Port, 1575532 AMAT 0020-00846 Glass, 4" View Port, 1575522 AMAT 0020-00846 Glass, 4" View Port, 157551AMAT 0020-00846 GLASS, 4" VIEW PORT BELLJAR,0500-0220A, 1512073 AMAT 0020-00846 View Port, Glass, 4", 129808AMAT 0020-00846 Glass, 4" View Port, 123271AMAT 0020-00846 Glass, 4" View Point, 122852AMAT 0020-00846 GLASS, 4" VIEW PORT, 122802AMAT 0020-00846 Viewpart, 4" Glass, 120949Applied materials 0020-00846 UHV CLEAN PART Glass 4" VIEW PORT0020-00846 UHV CLEAN PART 4" VIEWPORT
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APPLIED MATERIALS 0020-00846

4 in Viewport Glass

Market Availability & Pricing

Part number0020-00846
ManufacturerAPPLIED MATERIALS
Current availabilitySee listings below
Latest completed listing with reported salesNo qualifying listing found
Optical › Windows & Viewports › Viewport Glass
4 in Viewport Glass
APPLIED MATERIALS0020-00846Viewport Glass
Product description
Glass, 4 inch viewport
Specifications and identifiers
identification
ComponentViewport glass
Size4 inch
optical context
UseTransparent chamber or endpoint viewport component
Applications
Process chambersWafer processing hardwareVacuum chamber servicePreventive maintenance kitsEndpoint viewport serviceChamber observation window replacement
How it works

A mechanical process-tool component used for shielding, spacing, sealing, mounting, confinement, or chamber geometry control.

Material, coating, dimensions, process position, and surface condition can affect plasma behavior, contamination risk, and mechanical fit.

Technical guide
CVD
Chemical vapor deposition.
ESC
Electrostatic chuck.
QTZ
Quartz.
SST
Stainless steel.
What to verify before purchase
  • Glass material and coating
  • Diameter/thickness and seal compatibility
  • Scratches, chips, or haze
Confirm with the seller
  • Specific tool serial-number compatibility
  • Current calibration or functional test status

Product reference only. Confirm fitment, revision, included components, and specifications before purchase.

Documentation

No public documents were listed for this part when captured.

Available Listings

Prices and availability may change. Confirm details with the seller.

AMAT 0020-00846 Glass, 4" View Port, 177390

AMAT 0020-00846 Glass, 4" View Port, 177390

USD 125.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
US
Condition: NEW
Listed: Nov 20, 2024 22:30 UTC
End recorded: Dec 7, 2024 06:53 UTC
Estimated remaining at check: 1
Estimated sold at check: 0

eBay response captured — Checked Oct 9, 2026 16:19 UTC

Availability has not been rechecked; current availability is unknown.

Best Offer · Buy It Now

View on eBay
4 AMAT 0020-00846 Glass, 4" View Port, 177295

4 AMAT 0020-00846 Glass, 4" View Port, 177295

USD 475.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
US
Condition: NEW
Listed: Nov 20, 2024 20:00 UTC
End recorded: Dec 7, 2024 04:18 UTC
Estimated remaining at check: 1
Estimated sold at check: 0

eBay response captured — Checked Oct 9, 2026 16:19 UTC

Availability has not been rechecked; current availability is unknown.

Best Offer · Buy It Now

View on eBay
2 AMAT 0020-00846 Glss, 4" View Port, 167451

2 AMAT 0020-00846 Glss, 4" View Port, 167451

USD 250.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
US
Condition: Used
Listed: Aug 20, 2024 23:00 UTC
End recorded: Dec 7, 2024 04:41 UTC
Estimated remaining at check: 1
Estimated sold at check: 0

eBay response captured — Checked Oct 8, 2026 16:02 UTC

Availability has not been rechecked; current availability is unknown.

Best Offer · Buy It Now

View on eBay
AMAT 0240-00810 NO Endpoint Viewport Kit, 0020-00424, 0020-00846, 159761

AMAT 0240-00810 NO Endpoint Viewport Kit, 0020-00424, 0020-00846, 159761

USD 1500.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
US
Condition: NEW
Listed: Jun 14, 2024 18:00 UTC
End recorded: Dec 6, 2024 18:54 UTC
Estimated remaining at check: 1
Estimated sold at check: 0

eBay response captured — Checked Oct 6, 2026 16:25 UTC

Availability has not been rechecked; current availability is unknown.

Best Offer · Buy It Now

View on eBay
AMAT 0020-00846 Glass, 4" View Port, 158500

AMAT 0020-00846 Glass, 4" View Port, 158500

USD 125.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
US
Condition: Used
Listed: Jun 3, 2024 19:30 UTC
End recorded: Dec 7, 2024 02:15 UTC
Estimated remaining at check: 4
Estimated sold at check: 0

eBay response captured — Checked Oct 6, 2026 16:20 UTC

Availability has not been rechecked; current availability is unknown.

Best Offer · Buy It Now

View on eBay
3 AMAT 0020-00846 Glass, 4" View Port, 157553

3 AMAT 0020-00846 Glass, 4" View Port, 157553

USD 375.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
US
Condition: Used
Listed: May 22, 2024 00:01 UTC
End recorded: Dec 6, 2024 23:30 UTC
Estimated remaining at check: 1
Estimated sold at check: 0

eBay response captured — Checked Oct 6, 2026 16:16 UTC

Availability has not been rechecked; current availability is unknown.

Best Offer · Buy It Now

View on eBay
2 AMAT 0020-00846 Glass, 4" View Port, 157552

2 AMAT 0020-00846 Glass, 4" View Port, 157552

USD 250.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
US
Condition: Used
Listed: May 22, 2024 00:00 UTC
End recorded: Dec 6, 2024 23:28 UTC
Estimated remaining at check: 1
Estimated sold at check: 0

eBay response captured — Checked Oct 6, 2026 16:16 UTC

Availability has not been rechecked; current availability is unknown.

Best Offer · Buy It Now

View on eBay
2 AMAT 0020-00846 Glass, 4" View Port, 157551

2 AMAT 0020-00846 Glass, 4" View Port, 157551

USD 200.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
US
Condition: Used
Listed: May 22, 2024 00:00 UTC
End recorded: Dec 6, 2024 23:28 UTC
Estimated remaining at check: 1
Estimated sold at check: 0

eBay response captured — Checked Oct 6, 2026 16:16 UTC

Availability has not been rechecked; current availability is unknown.

Best Offer · Buy It Now

View on eBay
AMAT 0020-00846 GLASS, 4" VIEW PORT BELLJAR,0500-0220A, 151207

AMAT 0020-00846 GLASS, 4" VIEW PORT BELLJAR,0500-0220A, 151207

USD 125.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
US
Condition: Used
Listed: Mar 21, 2024 23:00 UTC
End recorded: Dec 7, 2024 10:42 UTC
Estimated remaining at check: 1
Estimated sold at check: 0

eBay response captured — Checked Oct 6, 2026 16:00 UTC

Availability has not been rechecked; current availability is unknown.

Best Offer · Buy It Now

View on eBay
3 AMAT 0020-00846 View Port, Glass, 4", 129808

3 AMAT 0020-00846 View Port, Glass, 4", 129808

USD 375.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
US
Condition: Used
Listed: Oct 4, 2023 00:00 UTC
End recorded: Dec 6, 2024 17:31 UTC
Estimated remaining at check: 1
Estimated sold at check: 0

eBay response captured — Checked Oct 3, 2026 16:12 UTC

Availability has not been rechecked; current availability is unknown.

Buy It Now

View on eBay
AMAT 0020-00846 Glass, 4" View Port, 123271

AMAT 0020-00846 Glass, 4" View Port, 123271

USD 125.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
US
Condition: Used
Listed: Jul 25, 2023 23:30 UTC
End recorded: Dec 7, 2024 14:29 UTC
Estimated remaining at check: 1
Estimated sold at check: 0

eBay response captured — Checked Oct 2, 2026 16:17 UTC

Availability has not been rechecked; current availability is unknown.

Buy It Now

View on eBay
AMAT 0020-00846 Glass, 4" View Point, 122852

AMAT 0020-00846 Glass, 4" View Point, 122852

USD 250.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
US
Condition: NEW
Listed: Jul 20, 2023 23:00 UTC
End recorded: Dec 6, 2024 23:00 UTC
Estimated remaining at check: 3
Estimated sold at check: 0

eBay response captured — Checked Oct 2, 2026 16:16 UTC

Availability has not been rechecked; current availability is unknown.

Buy It Now

View on eBay
AMAT 0020-00846 GLASS, 4" VIEW PORT, 122802

AMAT 0020-00846 GLASS, 4" VIEW PORT, 122802

USD 300.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
US
Condition: Used
Listed: Jul 20, 2023 20:00 UTC
End recorded: Dec 7, 2024 08:42 UTC
Estimated remaining at check: 2
Estimated sold at check: 0

eBay response captured — Checked Oct 2, 2026 16:16 UTC

Availability has not been rechecked; current availability is unknown.

Buy It Now

View on eBay
AMAT 0020-00846 Viewpart, 4" Glass, 120949

AMAT 0020-00846 Viewpart, 4" Glass, 120949

USD 400.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
US
Condition: NEW
Listed: Jun 29, 2023 23:00 UTC
End recorded: Dec 7, 2024 08:49 UTC
Estimated remaining at check: 1
Estimated sold at check: 0

eBay response captured — Checked Oct 2, 2026 16:12 UTC

Availability has not been rechecked; current availability is unknown.

Buy It Now

View on eBay
Applied materials 0020-00846 UHV CLEAN PART Glass 4" VIEW PORT

Applied materials 0020-00846 UHV CLEAN PART Glass 4" VIEW PORT

USD 400.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
US
Condition: NEW
Listed: Jul 2, 2022 18:00 UTC
End recorded: Dec 7, 2024 06:45 UTC
Estimated remaining at check: 1
Estimated sold at check: 0

eBay response captured — Checked Sep 30, 2026 16:09 UTC

Availability has not been rechecked; current availability is unknown.

Best Offer · Buy It Now

View on eBay
0020-00846 UHV CLEAN PART 4" VIEWPORT

0020-00846 UHV CLEAN PART 4" VIEWPORT

USD 130.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
KR
Condition: Used
Listed: Nov 15, 2021 08:30 UTC
End recorded: Feb 17, 2025 03:08 UTC
Estimated remaining at check: 2
Estimated sold at check: 0

eBay response captured — Checked Sep 29, 2026 16:18 UTC

Availability has not been rechecked; current availability is unknown.

Best Offer · Buy It Now

View on eBay

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