Black Rubber O-Rings — Compound Identification and Replacement Specification

Black circular-section O-rings can be supplied in different elastomer compounds, including NBR, HNBR, FKM, EPDM and silicone. Identify the compound grade as well as inner diameter, cross-section and hardness when ordering. Black appearance is not a reliable way to distinguish the polymer or confirm that a replacement matches the original part.
 
For replacement seals in pumps, valves, machinery or fluid systems, provide the part number, gland drawing and contacted media. Include temperature, pressure cycles and any motion or lubrication requirements. Confirm material identification and acceptance documents where needed; matching black color and nominal dimensions alone does not establish compatibility or performance.

Product Description

	Dimensions: inner diameter (ID) * cross-section (mm); specify tolerances and original part reference
	Material:NBR,HNBR,FKM,EPDM,Silicone And Ect.
	Custom enquiries: include black compound grade, hardness, drawing, quantity and required identification or inspection documents; OEM/ODM and packing can be reviewed.

 
Other Shape

Material 

FEPM, FFKM and CR (chloroprene) are distinct material families; specify the exact grade rather than identifying material by appearance.

Acrylate Rubber(ACM)                      Nitrile Rubber (Buna-N/NBR) 

Ethylene-propylene (EPR,EPDM)     Polyurethane(PU)

Fluorocarbon (FKM/FPM)                 Silicone Rubber(VMQ)

Fluorosilicone(FVMQ)                    Styrene-butadiene Rubber (SBR)

Hydrogenated Nitrile (HNBR)           Polytetrafluoroethylene(PTFE)

Package

Related Products

Company Profile

Our company boasts cutting-edge production equipment both domestically and internationally, complemented by superior manufacturing techniques, a seasoned team of technical experts, and a comprehensive quality assurance framework.

We specialize in offering OEM/ODM services, leveraging our multiple 150T/200T/300T vacuum vulcanizing machines to fulfill diverse production needs.

Agree the selected drawing, compound and inspection requirements before sample approval. Molding and tooling arrangements depend on part dimensions and the specified order quantity.

Delivery

FAQ

Q: Can I get some samples?
A: Certainly, samples are available. We offer 1-5 samples or 1 pack of samples for free. Please note that shipping
    costs are not included. Alternatively, we can arrange shipping using your courier account.
 
Q: What is the shipping time of samples?
A: Usually 3-5 Day.
 
Q: Can I custom product and print my logo on the product or packaging?
A: Yes, we offer customization services. For details, please contact us.
 
Q: Can you manage the shipment of products?
A: Absolutely, we can arrange different shipping methods based on the final packaging of the goods, including
    express, air, or sea shipping.
 
Q: Can you send the goods to an Amazon warehouse?
A: Certainly, just provide us with the exact address, and we will arrange the shipment accordingly.
 
Q: What payment methods do you accept?
A: We accept PayPal, Western Union, TT (bank transfer) and credit card; confirm payment arrangements with the quotation.
 
Q: What is the lead time?
A: For stock goods, the lead time is generally within 15 days, depending on the quantity. For custom orders, production takes approximately 12-15 days, depending on the packaging and quantity.