| Seal type | O-ring Circular elastomer seal. |
|---|---|
| Inside diameter | 18.955 Dimension supplied with the part identity; unit should be confirmed from drawing/catalog. |
| Cross-section diameter | .210 Seal cross-section dimension supplied with the part identity. |
| Material | Viton Fluoroelastomer material named in repeated descriptions. |
| Hardness | 75 duro Durometer hardness. |
| Color | Black Color indicated in multiple descriptions. |
| Replacement/style context | 2-388-S appears in some evidence Possible AS568/size or supplier reference; verify before substitution. |
An O-ring is an elastomer seal used to create a leak-tight interface between mating parts.
Seal dimensions and elastomer material are critical for leak-tight fit, chemical compatibility, and vacuum or gas service.
Fluoroelastomer commonly selected for chemical resistance and elevated-temperature service; exact compound must be verified.
Product reference only. Confirm fitment, revision, included components, and specifications before purchase.
No public documents were listed for this part when captured.
Prices and availability may change. Confirm details with the seller.
Observed public listing price, not an accepted sale amount.
eBay response captured — Checked Oct 10, 2026 16:22 UTC
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eBay response captured — Checked Oct 3, 2026 16:20 UTC
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Best Offer · Buy It Now
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eBay response captured — Checked Oct 1, 2026 16:21 UTC
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eBay response captured — Checked Oct 21, 2026 11:49 UTC
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Best Offer · Buy It Now
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eBay response captured — Checked Oct 21, 2026 11:12 UTC
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Best Offer · Buy It Now
View on eBayObserved public listing price, not an accepted sale amount.
eBay response captured — Checked Oct 20, 2026 16:13 UTC
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Best Offer · Buy It Now
View on eBayObserved public listing price, not an accepted sale amount.
eBay response captured — Checked Oct 18, 2026 16:24 UTC
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Best Offer · Buy It Now
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No active-status direct listings are shown on this page.
Auction listing history. Direct marketplace listings are shown separately.
| Currency | Price basis | Records | Minimum | Maximum | Mean |
|---|---|---|---|---|---|
| USD | Observed public listing prices | 7 | 53.1000 | 278.4300 | 137.2342857142857143 |
Amounts without an established currency are retained in the history below and excluded from monetary comparisons. Bids, public listing prices and accepted amounts are distinct; no currency conversion is applied.
| Time recorded | Listing | Observation | Public price | Recorded acceptance |
|---|---|---|---|---|
| Jun 24, 2025 13:03 UTC | AMAT Applied Materials 3700-02144 O-Ring Lot of 23 3700-01454 3700-01170 New | Completed listing price | 207.15 (currency not captured) | Not established |
| Jun 13, 2025 05:22 UTC | APPLIED MATERIALS 3700-01170 O-RING ID 18.955 CSD .210 VITON 75 DURO BLACK | Completed listing price | 90 (currency not captured) | Not established |
| Oct 23, 2021 07:05 UTC | APPLIED MATERIALS 3700-01170 O-RING ID 18.955 CSD .210 VITON 75 DURO BLACK | Completed listing price | 40 (currency not captured) | Not established |
| Oct 23, 2021 07:05 UTC | APPLIED MATERIALS 3700-01170 O-RING ID 18.955 CSD .210 VITON 75 DURO BLACK, 7pcs | Completed listing price | 150 (currency not captured) | Not established |
| Jun 23, 2021 14:12 UTC | Applied Materials Flow Control O-Ring Viton 3700-01170 | Completed listing price | 28.76 (currency not captured) | Not established |
| May 26, 2021 00:02 UTC | 7x Applied Materials / AMAT 3700-01170 ORING ID 18.955 CSD VITON 75 DURO BLK | Completed listing price | 100 (currency not captured) | Not established |
Public listing prices, direct recorded sale prices and recorded accepted Best Offer amounts remain distinct. Quantities are source estimates. No aggregate sales total or average is inferred.
Prices and availability may change. Confirm details with the seller.
Legacy public listing price; currency may not have been captured.
Legacy record; no enhanced status check captured
Check time or freshness is unknown; current availability is unknown.
Best Offer lookup was not verified; no accepted-price claim is made.
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Verification lookup unavailable; legacy status shown — Last attempted Aug 8, 2026 16:18 UTC
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Best Offer lookup was not verified; no accepted-price claim is made.
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Legacy record; no enhanced status check captured
Check time or freshness is unknown; current availability is unknown.
Best Offer lookup was not verified; no accepted-price claim is made.
View on eBayLegacy public listing price; currency may not have been captured.
Legacy record; no enhanced status check captured
Check time or freshness is unknown; current availability is unknown.
Best Offer lookup was not verified; no accepted-price claim is made.
View on eBayLegacy public listing price; currency may not have been captured.
Legacy record; no enhanced status check captured
Check time or freshness is unknown; current availability is unknown.
Best Offer lookup was not verified; no accepted-price claim is made.
View on eBayLegacy public listing price; currency may not have been captured.
Legacy record; no enhanced status check captured
Check time or freshness is unknown; current availability is unknown.
Best Offer lookup was not verified; no accepted-price claim is made.
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