EPDM O-ring · JIS B 2401 G145 size reference
O-Ring 144.40 × 3.10 mm · EPDM · 70A
- ID144.40 mm5.685 in
- CS3.10 mm0.122 in
- MaterialEPDM
- Hardness70 Shore A
OXXRING SKU OXX-OR-144P4-3P1-EPDM-70A-P10
$1.54 per piece
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Standard items: returns per our Refund Policy. Custom items are made to order.
Specifications
| Inside diameter (ID) | 144.40 mm · 5.685 in |
|---|---|
| Cross section (CS) | 3.10 mm · 0.122 in |
| Material family | EPDM |
| Hardness | 70 Shore A |
| Size reference | JIS B 2401 G145 |
| OXXRING SKU | OXX-OR-144P4-3P1-EPDM-70A-P10 |
| Ordering | Buy online |
Check this size for your application
Free engineering tools, already filled in with 144.40 × 3.10 mm EPDM.
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 |
|---|---|---|---|---|---|
| 144.40 × 3.10 mm5.685 × 0.122 in | NBR 70A | JIS B 2401 G145 | $10.62 / 10 pcs $1.06 / pc | Available to order | Choose pack |
| 144.40 × 3.10 mm5.685 × 0.122 in | FKM 80A | JIS B 2401 G145 | $57.87 / 13 pcs $4.45 / pc | Available to order | Choose pack |
| 144.40 × 3.10 mm5.685 × 0.122 in | FFKM 75A | JIS B 2401 G145 | $155.70 / 2 pcs $77.85 / 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.
EPDM material notes
Usually a good starting point for
Ozone/weathering, inorganic acids, alkalis, phosphate esters and many polar-fluid services.
Review before use with
Mineral oils and fuels are not default EPDM service; hot-water and steam use remains condition-dependent.
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 144.40 × 3.10 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.
Is the size reference a certification?
No. A size reference such as AS568 or ISO 3601 describes nominal dimensions. It does not certify the compound or approve the part for a specific application.