Silicone O-ring · AS568-420 size reference

O-Ring 97.79 × 6.99 mm · Silicone · 70A

  • ID97.79 mm3.850 in
  • CS6.99 mm0.275 in
  • MaterialSilicone
  • Hardness70 Shore A

OXXRING SKU OXX-OR-97P79-6P99-SILICONE-70A-P10

O-Ring 97.79 × 6.99 mm · Silicone · 70A
Representative image. Colour can differ by compound.
ID 97.79 mm CS 6.99 mm SECTION
Nominal dimensions. Drawing is proportional, not to scale.
PDF Technical drawingFront and section views with dimensions

Same size, other grades

Compare every grade at this size →
Quote required

This size is quoted on request

Pricing depends on the quantity, compound and schedule. Send your requirement and we reply with an offer.

Request a quote

The size and material of this listing are already filled in. Add the quantity and, if you can, the application and a drawing or photo.

How your quote is builtProduct cost and standard shipping. Rush production, expedited shipping and tooling only if needed, each on its own line.
Quote lines
  1. Product cost
  2. Standard shipping
  3. Rush production fee if requested
  4. Expedited shipping fee if requested
  5. Tooling / mold fee if a new mold is needed
  6. Special certification / testing fee if requested
Tooling / mold fee
Custom products that require new tooling or molds may incur a one-time tooling charge. Tooling requirements and fees will be confirmed before the order is finalized.
Rush production
Rush tooling and production are available on request. For a new mold, the standard tooling-and-production time is 13 days; rush service can be as fast as 7 days, subject to factory confirmation. Rush charges depend on the specification, quantity and schedule, and are quoted separately from shipping.
Expedited shipping
Expedited shipping or priority delivery options may be available upon request. Additional shipping charges will apply based on destination, package size, weight, carrier, service level and required delivery time. Faster shipping speeds up transit only, not production.
  • Quality Checked Before Shipping
  • Fast Response
  • Secure Payment

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

Specifications

Inside diameter (ID)97.79 mm · 3.850 in
Cross section (CS)6.99 mm · 0.275 in
Material familySilicone
Hardness70 Shore A
Size referenceAS568-420
OXXRING SKUOXX-OR-97P79-6P99-SILICONE-70A-P10
OrderingQuote required
Check chemical compatibility for Silicone Check this size in a groove

Check this size for your application

Free engineering tools, already filled in with 97.79 × 6.99 mm Silicone.

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
97.79 × 6.99 mm3.850 × 0.275 in NBR 70A AS568-420 Quoted on request Quote required Request quote
97.79 × 6.99 mm3.850 × 0.275 in FKM 80A AS568-420 Quoted on request Quote required Request quote
97.79 × 6.99 mm3.850 × 0.275 in EPDM 70A AS568-420 Quoted on request Quote required Request quote
97.79 × 6.99 mm3.850 × 0.275 in FFKM 80A AS568-420 Quoted on request Quote required Request quote

Silicone material notes

Usually a good starting point for

Ozone/weathering and salt-solution service; water service may be considered conditionally.

Review before use with

Review fuels, aromatic/chlorinated hydrocarbons, steam, acids, alkalis and silicone-fluid service.

Family-level screening, not an approval of a specific compound. Screen a chemical or ask for a material check.

Documents

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 97.79 × 6.99 mm. For a used ring, measure in several places; wear and swelling change the dimensions. Measurement guide

How do I get a price for this size?

Send the quantity you need and your application through the request form. The offer lists the product cost, shipping and any optional charges separately, and nothing is charged until you accept it.

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.