FFKM O-ring

O-Ring 120.32 × 1.78 mm · FFKM · 75A

  • ID120.32 mm4.737 in
  • CS1.78 mm0.070 in
  • MaterialFFKM
  • Hardness75 Shore A

OXXRING SKU OXX-OR-120P32-1P78-FFKM-75A-P1

O-Ring 120.32 × 1.78 mm · FFKM · 75A
Representative image. Colour can differ by compound.
ID 120.32 mm CS 1.78 mm SECTION
Nominal dimensions. Drawing is proportional, not to scale.

Same size, other grades

Compare every grade at this size →
Available to order
$164.01for 1 pcs

$164.01 per piece

1 pack × 1 pcs = 1 pieces · $164.01

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  • Price is the total for the pack. Taxes and shipping are calculated at checkout.

Need 1,000+ or a different spec? Bulk quote

Standard items: returns per our Refund Policy. Custom items are made to order.

Specifications

Inside diameter (ID)120.32 mm · 4.737 in
Cross section (CS)1.78 mm · 0.070 in
Material familyFFKM
Hardness75 Shore A
OXXRING SKUOXX-OR-120P32-1P78-FFKM-75A-P1
OrderingBuy online
Check chemical compatibility for FFKM Check this size in a groove

Check this size for your application

Free engineering tools, already filled in with 120.32 × 1.78 mm FFKM.

Engineer ProRod, piston, face or dynamic seal: squeeze, extrusion and pressure for this exact ring Material selectorMedia, temperature and pressure to the right family Size cross-referenceThis size in AS568, JIS and BS terms CalculatorsWeight, cord length and stretch

Same size, other materials and hardness

Identical nominal ID × CS. Material and hardness change suitability; check the fluid and temperature before switching.

SizeMaterialSize referenceSmallest packOrderingAction
120.32 × 1.78 mm4.737 × 0.070 in NBR 80A — $5.53 / 10 pcs $0.55 / pc Available to order Choose pack
120.32 × 1.78 mm4.737 × 0.070 in EPDM 70A — $24.98 / 10 pcs $2.50 / pc Available to order Choose pack
120.32 × 1.78 mm4.737 × 0.070 in Silicone 70A — $22.40 / 10 pcs $2.24 / pc Available to order Choose pack
120.32 × 1.78 mm4.737 × 0.070 in FKM 90A — $39.94 / 10 pcs $3.99 / pc Available to order Choose pack

FFKM material notes

Usually a good starting point for

Broad chemical-service screening including aromatic/chlorinated hydrocarbons, ketones, esters, ethers, polar solvents, organic acids, steam and vacuum.

Review before use with

Fluorinated refrigerants and temperature-critical service require exact-compound review.

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 120.32 × 1.78 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.