KALREZ® O-ring FFKM 75 Compound 6375

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You use this black FFKM O-ring as a seal for steam, oils, acids, bases and solvents in static and slow dynamic applications. This product is the best-sold Kalrez® O-ring because of its extensive applicability. You mainly find these seals in the petrochemical and chemical industries.

Application

Temperature resistance
The Kalrez® 6375 O-ring has an operating temperature range from -20°C to +275°C.

Maximum pressure
Compound 6375 has a Shore A hardness of 75. This makes it suitable for applications with a pressure of up to 80 bars. Note that you must also strictly adhere to the guidelines in the chart below. This chart shows the relationship between the hardness of your O-ring, the pressure in your application, the groove size and the seal clearance gap.

Are you going to use this seal in a slow, dynamic application with a pressure of 50 bars or higher? If so, we advise you to use back-up rings.

Chemical resistance
This rubber material offers good chemical resistance across a very broad spectrum. So it is ideal for applications involving high temperatures (e.g. steam) and strong chemicals, such as amines and solvents.

Recommended in: Chemical

Stock item

Product: O-ring

Material: FFKM

Colour: Black

Hardness: 75

Compound: 6375

Temperature range (°C): from -20 to 275

Internal diameter (mm)

Cross section (mm)

Size according to AS568-BS1806-ISO3601

Size according to French R

Size according to BS4518

Size according to JIS

Size according to DIN11864

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KALREZ® O-ring FFKM 75 6375 AS568-BS1806-ISO3601-104 2.84x2.62mm ERIKS Item #: 11098052 Compare Compare	Price (Per piece): €50.01	{"addToCartPD":{ "item_name": "o-ring ffkm 75 6375 as568-bs1806-iso3601-104 2.84x2.62mm", "item_id": "gr0000000184544", "material_number": "11098052", "price": "50.01", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "quantity": "" } } {"itemTrackPD":{ "item_name": "o-ring ffkm 75 6375 as568-bs1806-iso3601-104 2.84x2.62mm", "item_id": "gr0000000184544", "material_number": "11098052", "price": "50.01", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "index": "1", "quantity": "" } }
KALREZ® O-ring FFKM 75 6375 AS568-BS1806-ISO3601-006 2.9x1.78mm ERIKS Item #: 11095502 Compare Compare	Price (Per piece): €36.03	{"addToCartPD":{ "item_name": "o-ring ffkm 75 6375 as568-bs1806-iso3601-006 2.9x1.78mm", "item_id": "gr0000000184892", "material_number": "11095502", "price": "36.03", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "quantity": "" } } {"itemTrackPD":{ "item_name": "o-ring ffkm 75 6375 as568-bs1806-iso3601-006 2.9x1.78mm", "item_id": "gr0000000184892", "material_number": "11095502", "price": "36.03", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "index": "2", "quantity": "" } }
KALREZ® O-ring FFKM 75 6375 3x2mm ERIKS Item #: 11258904 Compare Compare	Price (Per piece): €37.82	{"addToCartPD":{ "item_name": "o-ring ffkm 75 6375 3x2mm", "item_id": "gr0000000566237", "material_number": "11258904", "price": "37.82", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "quantity": "" } } {"itemTrackPD":{ "item_name": "o-ring ffkm 75 6375 3x2mm", "item_id": "gr0000000566237", "material_number": "11258904", "price": "37.82", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "index": "3", "quantity": "" } }
KALREZ® O-ring FFKM 75 6375 BS4518-0031-16 3.1x1.6mm ERIKS Item #: 11248630 Compare Compare	Price (Per piece): €35.10	{"addToCartPD":{ "item_name": "o-ring ffkm 75 6375 bs4518-0031-16 3.1x1.6mm", "item_id": "gr0000000569640", "material_number": "11248630", "price": "35.1", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "quantity": "" } } {"itemTrackPD":{ "item_name": "o-ring ffkm 75 6375 bs4518-0031-16 3.1x1.6mm", "item_id": "gr0000000569640", "material_number": "11248630", "price": "35.1", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "index": "4", "quantity": "" } }
KALREZ® O-ring FFKM 75 6375 NF-R2 3.4x1.9mm ERIKS Item #: 11265556 Compare Compare	Price (Per piece): €35.91	{"addToCartPD":{ "item_name": "o-ring ffkm 75 6375 nf-r2 3.4x1.9mm", "item_id": "gr0000000568610", "material_number": "11265556", "price": "35.91", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "quantity": "" } } {"itemTrackPD":{ "item_name": "o-ring ffkm 75 6375 nf-r2 3.4x1.9mm", "item_id": "gr0000000568610", "material_number": "11265556", "price": "35.91", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "index": "5", "quantity": "" } }
KALREZ® O-ring FFKM 75 6375 JIS- S-4 3.5x1.5mm ERIKS Item #: 11475415 Compare Compare	Price (Per piece): €35.60	{"addToCartPD":{ "item_name": "o-ring ffkm 75 6375 jis- s-4 3.5x1.5mm", "item_id": "gr0000001317544", "material_number": "11475415", "price": "35.6", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "quantity": "" } } {"itemTrackPD":{ "item_name": "o-ring ffkm 75 6375 jis- s-4 3.5x1.5mm", "item_id": "gr0000001317544", "material_number": "11475415", "price": "35.6", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "index": "6", "quantity": "" } }
KALREZ® O-ring FFKM 75 6375 AS568-BS1806-ISO3601-105 3.63x2.62mm ERIKS Item #: 11098053 Compare Compare	Price (Per piece): €50.68	{"addToCartPD":{ "item_name": "o-ring ffkm 75 6375 as568-bs1806-iso3601-105 3.63x2.62mm", "item_id": "gr0000000184652", "material_number": "11098053", "price": "50.68", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "quantity": "" } } {"itemTrackPD":{ "item_name": "o-ring ffkm 75 6375 as568-bs1806-iso3601-105 3.63x2.62mm", "item_id": "gr0000000184652", "material_number": "11098053", "price": "50.68", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "index": "7", "quantity": "" } }
KALREZ® O-ring FFKM 75 6375 AS568-BS1806-ISO3601-007 3.68x1.78mm ERIKS Item #: 11095523 Compare Compare	Price (Per piece): €35.98	{"addToCartPD":{ "item_name": "o-ring ffkm 75 6375 as568-bs1806-iso3601-007 3.68x1.78mm", "item_id": "gr0000000184941", "material_number": "11095523", "price": "35.98", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "quantity": "" } } {"itemTrackPD":{ "item_name": "o-ring ffkm 75 6375 as568-bs1806-iso3601-007 3.68x1.78mm", "item_id": "gr0000000184941", "material_number": "11095523", "price": "35.98", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "index": "8", "quantity": "" } }
KALREZ® O-ring FFKM 75 6375 4x2mm ERIKS Item #: 11407973 Compare Compare	Price (Per piece): €37.82	{"addToCartPD":{ "item_name": "o-ring ffkm 75 6375 4x2mm", "item_id": "gr0000000571533", "material_number": "11407973", "price": "37.82", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "quantity": "" } } {"itemTrackPD":{ "item_name": "o-ring ffkm 75 6375 4x2mm", "item_id": "gr0000000571533", "material_number": "11407973", "price": "37.82", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "index": "9", "quantity": "" } }
KALREZ® O-ring FFKM 75 6375 BS4518-0041-16 4.1x1.6mm ERIKS Item #: 11270737 Compare Compare	Price (Per piece): €35.65	{"addToCartPD":{ "item_name": "o-ring ffkm 75 6375 bs4518-0041-16 4.1x1.6mm", "item_id": "gr0000000569707", "material_number": "11270737", "price": "35.65", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "quantity": "" } } {"itemTrackPD":{ "item_name": "o-ring ffkm 75 6375 bs4518-0041-16 4.1x1.6mm", "item_id": "gr0000000569707", "material_number": "11270737", "price": "35.65", "item_brand": "kalrez®", "item_category":"seals", "item_category2":"o-rings and accessories", "item_category3":"o-rings", "item_category4": "pr_ec010584_0005", "item_variant": "pce", "index": "10", "quantity": "" } }