NBR O-ring
O-Ring 123.80 × 5.33 mm · NBR · 70A
- ID123.80 mm4.874 in
- CS5.33 mm0.210 in
- MaterialNBR
- Hardness70 Shore A
OXXRING SKU OXX-OR-123P8-5P33-NBR-70A-P50
Same size, other grades
Compare every grade at this size →$0.86 per piece
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Standard items: returns per our Refund Policy. Custom items are made to order.
Specifications
| Inside diameter (ID) | 123.80 mm · 4.874 in |
|---|---|
| Cross section (CS) | 5.33 mm · 0.210 in |
| Material family | NBR |
| Hardness | 70 Shore A |
| OXXRING SKU | OXX-OR-123P8-5P33-NBR-70A-P50 |
| Ordering | Buy online |
Check this size for your application
Free engineering tools, already filled in with 123.80 × 5.33 mm NBR.
Same size, other materials and hardness
Identical nominal ID × CS. Material and hardness change suitability; check the fluid and temperature before switching.
| Size | Material | Size reference | Smallest pack | Ordering | Action |
|---|---|---|---|---|---|
| 123.80 × 5.33 mm4.874 × 0.210 in | FKM 80A | — | $26.86 / 5 pcs $5.37 / pc | Available to order | Choose pack |
| 123.80 × 5.33 mm4.874 × 0.210 in | EPDM 70A | — | $169.28 / 10 pcs $16.93 / pc | Available to order | Choose pack |
| 123.80 × 5.33 mm4.874 × 0.210 in | Silicone 70A | — | $51.93 / 10 pcs $5.19 / pc | Available to order | Choose pack |
| 123.80 × 5.33 mm4.874 × 0.210 in | FFKM 75A | — | $176.52 / pc $176.52 / pc | Available to order | Choose pack |
Nearby listed sizes
For comparison only. A nearby size is not an equivalent; confirm the gland dimensions or ask for a review before substituting.
NBR material notes
Usually a good starting point for
Mineral oils, many fuels, hydraulic fluids and aliphatic-hydrocarbon service.
Review before use with
Review ozone/weathering, flex fuels, aromatic or chlorinated hydrocarbons, ketones, esters, polar solvents, glycol brake fluid and strong acids.
Family-level screening, not an approval of a specific compound. Screen a chemical or ask for a material check.
Questions about this O-ring
How do I confirm this is the right size?
Measure the inside diameter and the cross section of the ring you are replacing, or read them from the drawing. This listing is 123.80 × 5.33 mm. For a used ring, measure in several places; wear and swelling change the dimensions. Measurement guide
How is the price calculated?
The price shown is the total for one pack. The per-piece price is shown beside it for comparison. Choose how many packs you need; taxes and shipping are calculated at checkout.
Can I order a quantity that is not in the pack list?
Yes. Order several packs, or request a quote for larger or scheduled quantities.