O-RING SELECTION M-O

O-RING SELECTION GUIDE "M-O"

PLEASE SEE THE BOTTOM OF THIS PAGE FOR AN EXPLANATION OF THE CODES

Machine Oil

V

O

Maddrell's Salt

E,V

-

-

Magnesium Acetate

E

-

-

Magnesium Ammonium sulfate

E,V

-

-

Magnesium Bisulfite

E

-

-

Magnesium Carbonate

V

-

-

Magnesium Chloride

E,V

-

-

Magnesium Citrate

E,V

-

-

Magnesium Dioxide

E,V

-

-

Magnesium Hydrate

E

-

-

Magnesium Hydroxide

E,V

-

-

Magnesium Nitrate

E

-

-

Magnesium Oxide

E,V

-

-

Magnesium Salts

E,V

-

-

Magnesium Sulphate

E,V

-

-

Magnesium Sulphite

E.V

-

-

Maize Oil

V

O

Malathion

V

-

-

Maleic Acid

V

-

-

Maleic Anhydride

V

-

-

Malic Acid

V

-

-

Malonyl Nitrile

E

-

-

Malt Beverage

E

C

Manganese Chloride

V

-

-

Manganese Nitrate

B

-

-

Manganese Salts

V

-

-

Manganese Sulfide

V

-

-

Manganese Sulfite

V

-

-

ManganeseSulfate

E,V

-

-

Maple Sugar Liquors

E,V

C

Marsh Gas

V

-

F,E

Mash

B

-

-

Mayonnaise

V

C

Mcnalliumoxide

V

C

MCS 312

V

-

-

MCS 352

E

-

-

MCS 463

E

-

-

MEA (Monoethanolamine)

E

-

-

Mecuric Sulfate

E,V

-

-

Mecurous salts

E,V

-

-

Medthyl Acetone

E

-

-

Melamine Resins

E

-

-

Mercaptans

C

-

-

Mercuric Chloride

E,V

-

-

Mercuric Cyanide

E,V

-

-

Mercurous Nitrate

E,V

-

-

Mercury

E,V

O

T

Mercury Bichloride

E,V

-

-

Mercury Chloride

E,V

-

-

Mercury Salts

V

-

-

Mercury Vapors

E,V

-

-

Mesityl Oxide (Ketone)

E

-

-

Methadiene

V

-

-

Methallyl Alcohol

B

-

-

Methanal

E,V

-

-

Methanamide

E

-

-

Methane

V

-

F,E

Methanoic Acid

E

-

-

Methanol

E

-

-

Methenyl Trichloride

V

S

T

Methyl Acetate

E

-

-

Methyl Acetoacetate

E

-

-

Methyl Acrylate

E

-

-

Methyl acrylic Acid

E

-

-

Methyl Alcohol

E

-

-

Methyl amine

E

O

F,T

Methyl Amyl Alcohol

B

-

-

Methyl Amyl Carbinol

B

-

-

Methyl Benzene

V

-

-

Methyl Benzoate

V

-

-

Methyl Bromide

V

-

-

Methyl Butanol

B

-

-

Methyl butyl ketone

E

-

-

Methyl Carbonate

V

-

-

Methyl Cellosolve

E

-

-

Methyl Cellulose

B

-

-

Methyl Chloride

VV

S

E

Methyl Chloroform

V

-

-

Methyl Chloroformate

V

-

-

Methyl Cyanide

E

C

T,F

Methyl Cyclopentane

V

-

-

Methyl Dibromide

V

-

-

Methyl Dichloride

V

-

-

Methyl Ether

V,E

C

F

Methyl Ethyl Ketone (MEK)

E

O

F,E

Methyl Ethyl Ketone Peroxide*

C

-

-

Methyl Formate

N

-

-

Methyl Hexane

V

-

-

Methyl Hexanol

B

-

-

Methyl Hydrate

B

-

-

Methyl Hydride

V

-

-

Methyl Hydroxide

B

-

-

Methyl Iodide

E

-

-

Methyl Isobutenyl Ketone(MIBK)

C

-

-

Methyl Isopropyl Ketone

E

-

-

Methyl Mercaptan

E

-

-

Methyl Methacrylate

C

-

-

Methyl Methane

V

-

-

Methyl Oleate

V

-

-

Methyl Oxide

E,V

C

F

Methyl Phenol

V

-

-

Methyl Phenol Ether

C

O

Methyl Phenyl Ketone

E

-

-

Methyl Polysiloxanes

E,V

-

-

Methyl Propanol

E,V

-

-

Methyl Propyl Carbinol

B

-

-

Methyl Propyl Salicylate

E

-

-

Methyl Sulfoxide

C

-

-

Methylacetal

E

-

-

Methylated Spirits

E

-

-

Methylene Bromide

C

-

-

Methylene Chloride

V

S

Methylene Dichloride

V

-

-

MIL H 22251

E

-

-

MIL H 7083

E

-

-

MIL P 27402

E

-

-

Milk

E,V

C

Milk of lime

E

-

-

Milk Of Magnesia

E,V

C

Mine Water

E,V

C

Mineral Naptha

V

-

-

Mineral Oils

V

O

Mineral Pitch

V

O

Mineral Spirits

V

O

Minesate, Sunoco 3XF

V

-

-

Miribilite

E,V

-

-

Mixed acids

C

-

-

Mobil oil SAE 20

V

O

Mobilgas WA200 Typ A automatic transmission fluid

V

O

Molasses

V

H

Molten Sulfur <350°F

V

O

Molybdic Acid

E,V

-

-

Molysite

E,V

-

-

Mono bromo benzene

V

-

-

Mono chloro acetic Acid

E

-

-

Mono chloro acetone

E

-

-

Mono chloro benzene

V

-

-

Mono chloro benzene

V

-

-

Mono chloro difluoro methane

E

-

-

Mono chloro ethane

V

-

-

Mono chloro phenol

V

-

-

Mono ethanol amine

E

-

-

Mono ethyl amine

E

-

-

Mono isopropanol Amine

C

-

-

Mono methyl Amine

E

-

-

Mono methyl Analine

E

-

-

Mono methyl aniline

V

-

-

Mono methyl Ether

E,V

-

-

Mono methyl Hydrazine

E

-

-

Mono nitro chloro benzene

V

-

-

Mono vinyl Acetylene

V

-

-

Mono vinyl Arsenate

E,V

-

-

Monoammonium Phosphate

E

-

-

Monsel's Salt

E,V

-

-

Mopar Brake Fluid

E

-

-

Morrhua Oil

E,V

-

-

Mosaic Gold

B

-

-

Motor Oil

V

O

Mullite (clay)

E

O

Muriate Of Ammonia

E,V

-

-

Muriatic Acid

E,V

-

-

Mustard

E,V

C

n-Heptane

V

-

-

n-Hexaldehyde

C

-

-

n-Hexaldehyde

E

-

-

n-Hexane

V

-

-

n-Hexene-1

V

-

-

Napalm

V

-

F

Naphtha

V

-

F

Naphthalene

V

-

-

Naphthalenic

V

-

-

Naphthenic Acid

V

-

-

Natural Gas

V

O

F,E

Neatsfoot Oil

V

-

-

Neohexane

V

-

-

Neon

E,V

-

-

Neosol

B

-

-

Neville Acid

V

-

-

Niacin

E

-

-

Nickel

E,V

-

-

Nickel Acetate

E

-

-

Nickel Ammonia Sulfate

V

-

-

Nickel Chloride

E,V

-

-

Nickel Nitrate

E,V

-

-

Nickel Plating Solution

B

-

-

Nickel Salts

E,V

-

-

Nickel Sulfate

-E,V

-

-

Nickel Sulphate

E,V

-

-

Nicotine

V

-

-

Nicotine Bentonite

B

-

-

Nicotine Sulfate

B

-

-

Nicotinic Acid

E

-

-

Niter Cake

E,V

-

-

Niter-potassium Nitrate

E,V

-

-

Niter-sodium Nitrate

E

-

-

Nitrating Acid

N

-

-

Nitric Acid to 100%*

C1

-

F

Nitro carbol

E

-

-

Nitro benzene

V

-

-

Nitro benzine

V

-

-

Nitro benzol

V

-

-

Nitro calcatite

E,V

-

-

Nitro cellulose

C

O

F,E

Nitro Cotton

C

O

F,E

Nitro ethane

C

-

-

Nitro hydrochloric acid

V

O

T

Nitro methane

E

-

-

Nitro muriatic Acid

V

-

-

Nitro propane

E

-

-

Nitrogen Gas

E,V

-

-

Nitrogen Monoxide

E,V

-

-

Nitrogene Tetroxide

C

-

-

Nitrous acid

V

-

-

Nitrous Monoxide

E,V

-

-

Nitrous Oxide

E,V

-

-

Nitroxanthic Acid

V

-

-

Nonanoic Acid

B

-

-

Nonenes

B

-

-

Norge Niter

E,V

-

-

Norge Saltpeter

E,V

-

-

Norway Saltpeter

E,V

-

-

Noryl G.E. phenolic

E

-

-

NRRO

V

-

-

Nut Oil

V

-

-

Nutra sweet

E,V

-

-

Oakite Alkaline Materials

E

-

-

Octa chloro toluene

V

-

-

Octa decadienoic Acid

C

-

-

Octa decane

V

-

-

Octanol

E,V

-

-

Octyl Alcohol

V

-

-

Oil, Corn

V

-

-

Oil, Asphalt Base

V

O

Oil, Bay

V

-

-

Oil, Bone

V

-

-

Oil, Castor

V

-

-

Oil, Cinammon

V

-

-

Oil, Citric

V

-

-

Oil, Clove

V

-

-

Oil, Cocanut

V

-

-

Oil, Cod Liver

V

-

-

Oil, Cotton Seed

V

-

-

Oil, Creosote

V

-

-

Oil, diesel

V

-

-

Oil, Ginger

E,V

-

-

Oil, Hydraulic (petroleun base)

V

-

-

Oil, Lemon

V

-

-

Oil, Linseed

V

-

-

Oil, Lubricating

V

-

-

Oil, MIneral

V

-

-

Oil, Mineral Base

V

-

-

Oil, Mirbane

V

-

-

Oil, Olive

V

-

-

Oil, Orange

V

-

-

Oil, Palm

V

-

-

Oil, Peanut

V

-

-

Oil, Peppermint

V

-

-

Oil, Petroleum Crude

V

-

-

Oil, Pine

V

-

-

Oil, Rapeseed

E,V

-

-

Oil, Red

V

-

-

Oil, Rosin

V

-

-

Oil, Sesamee Seed

V

-

-

Oil, Silicone

E,V

-

-

Oil, Soybean

V

-

-

Oil, Sperm

V

-

-

Oil, Tanning

V

-

-

Oil, Turbine

V

-

-

Oil, Turpentine

V

-

-

Oil, Ucon

V

-

-

Oil, Vegetable

V

-

-

Oil, Vitriol

V

-

-

Oleic Acid

V

-

-

Oleum (Fuming Sulfuric Acid) *

V

O

F

Oleum Lini

V

-

-

Oleum Spirits

V

-

-

Oleyl Alcohol

C

-

-

Olive Oil

V

-

-

Oronite 8200

V

-

-

Oronite 8515

V

-

-

Orthcarsenic Acid

E,V

C

T

Ortho Chloranaline

C

-

-

Ortho Chloro ethyl benzene

V

-

-

Ortho Chloro phenol

C

-

-

Ortho Cresol

C

-

-

Ortho Dichlor benene

V

-

-

Ortho dichloro benzol

V

-

-

Ortho Nitro toluene

C

-

-

Ortho Phosphoric Acid

V

-

-

Orthoboric Acid

E,V

-

-

Orthoxylene

V

-

-

Oxalic Acid (Weak)

E,V

-

-

Oxy ethylene Succinic Acid

V

-

-

Oxygen to 210 F

E,V

-

-

Ozone

E,V

-

-

Column #2. THE O-RING- (V) VITON ® grade 747-75, (E) ETHYLENE PROPYLENE, (B) BUNA N, (Bu) BUTYL, (C) CHEMRAZ OR Kalrez®, (N) NEOPRENE
Column# 3. SOLUBLE IN WATER- (C) COLD WATER, (H) HOT WATER , (O) NOT SOLUBLE, (S) SLIGHTLY SOLUBLE, (V) REACTS VIOLENTLY WITH WATER, (D) DECOMPOSES, (H) HYDROLIZES, (M) MISCIBLE
Column #4. HAZARDOUS, NEEDS TWO SEALS- (F) FIRE, (T) TOXIC, (C) CARCINOGEN, [E) EXPLOSIVE
* OXIDIZER - WILL ATTACK ALL FORMS OF CARBON
® DuPont Dow Elastomers

Link to Chemical Listing Guide

For information about my CD with over 600 Seal & Pump Subjects explained, click here

Link to Mc Nally home page www.mcnallyinstitute.com

Machine Oil	V	O
Maddrell's Salt	E,V	-	-
Magnesium Acetate	E	-	-
Magnesium Ammonium sulfate	E,V	-	-
Magnesium Bisulfite	E	-	-
Magnesium Carbonate	V	-	-
Magnesium Chloride	E,V	-	-
Magnesium Citrate	E,V	-	-
Magnesium Dioxide	E,V	-	-
Magnesium Hydrate	E	-	-
Magnesium Hydroxide	E,V	-	-
Magnesium Nitrate	E	-	-
Magnesium Oxide	E,V	-	-
Magnesium Salts	E,V	-	-
Magnesium Sulphate	E,V	-	-
Magnesium Sulphite	E.V	-	-
Maize Oil	V	O
Malathion	V	-	-
Maleic Acid	V	-	-
Maleic Anhydride	V	-	-
Malic Acid	V	-	-
Malonyl Nitrile	E	-	-
Malt Beverage	E	C
Manganese Chloride	V	-	-
Manganese Nitrate	B	-	-
Manganese Salts	V	-	-
Manganese Sulfide	V	-	-
Manganese Sulfite	V	-	-
ManganeseSulfate	E,V	-	-
Maple Sugar Liquors	E,V	C
Marsh Gas	V	-	F,E
Mash	B	-	-
Mayonnaise	V	C
Mcnalliumoxide	V	C
MCS 312	V	-	-
MCS 352	E	-	-
MCS 463	E	-	-
MEA (Monoethanolamine)	E	-	-
Mecuric Sulfate	E,V	-	-
Mecurous salts	E,V	-	-
Medthyl Acetone	E	-	-
Melamine Resins	E	-	-
Mercaptans	C	-	-
Mercuric Chloride	E,V	-	-
Mercuric Cyanide	E,V	-	-
Mercurous Nitrate	E,V	-	-
Mercury	E,V	O	T
Mercury Bichloride	E,V	-	-
Mercury Chloride	E,V	-	-
Mercury Salts	V	-	-

Mercury Vapors	E,V	-	-
Mesityl Oxide (Ketone)	E	-	-
Methadiene	V	-	-
Methallyl Alcohol	B	-	-
Methanal	E,V	-	-
Methanamide	E	-	-
Methane	V	-	F,E
Methanoic Acid	E	-	-
Methanol	E	-	-
Methenyl Trichloride	V	S	T
Methyl Acetate	E	-	-
Methyl Acetoacetate	E	-	-
Methyl Acrylate	E	-	-
Methyl acrylic Acid	E	-	-
Methyl Alcohol	E	-	-
Methyl amine	E	O	F,T
Methyl Amyl Alcohol	B	-	-
Methyl Amyl Carbinol	B	-	-
Methyl Benzene	V	-	-
Methyl Benzoate	V	-	-
Methyl Bromide	V	-	-
Methyl Butanol	B	-	-
Methyl butyl ketone	E	-	-
Methyl Carbonate	V	-	-
Methyl Cellosolve	E	-	-
Methyl Cellulose	B	-	-
Methyl Chloride	VV	S	E
Methyl Chloroform	V	-	-
Methyl Chloroformate	V	-	-
Methyl Cyanide	E	C	T,F
Methyl Cyclopentane	V	-	-
Methyl Dibromide	V	-	-
Methyl Dichloride	V	-	-
Methyl Ether	V,E	C	F
Methyl Ethyl Ketone (MEK)	E	O	F,E
Methyl Ethyl Ketone Peroxide*	C	-	-
Methyl Formate	N	-	-
Methyl Hexane	V	-	-
Methyl Hexanol	B	-	-
Methyl Hydrate	B	-	-
Methyl Hydride	V	-	-
Methyl Hydroxide	B	-	-
Methyl Iodide	E	-	-
Methyl Isobutenyl Ketone(MIBK)	C	-	-
Methyl Isopropyl Ketone	E	-	-
Methyl Mercaptan	E	-	-
Methyl Methacrylate	C	-	-
Methyl Methane	V	-	-
Methyl Oleate	V	-	-
Methyl Oxide	E,V	C	F

Methyl Phenol	V	-	-
Methyl Phenol Ether	C	O
Methyl Phenyl Ketone	E	-	-
Methyl Polysiloxanes	E,V	-	-
Methyl Propanol	E,V	-	-
Methyl Propyl Carbinol	B	-	-
Methyl Propyl Salicylate	E	-	-
Methyl Sulfoxide	C	-	-
Methylacetal	E	-	-
Methylated Spirits	E	-	-
Methylene Bromide	C	-	-
Methylene Chloride	V	S
Methylene Dichloride	V	-	-
MIL H 22251	E	-	-
MIL H 7083	E	-	-
MIL P 27402	E	-	-
Milk	E,V	C
Milk of lime	E	-	-
Milk Of Magnesia	E,V	C
Mine Water	E,V	C
Mineral Naptha	V	-	-
Mineral Oils	V	O
Mineral Pitch	V	O
Mineral Spirits	V	O
Minesate, Sunoco 3XF	V	-	-
Miribilite	E,V	-	-
Mixed acids	C	-	-
Mobil oil SAE 20	V	O
Mobilgas WA200 Typ A automatic transmission fluid	V	O
Molasses	V	H
Molten Sulfur <350°F	V	O
Molybdic Acid	E,V	-	-
Molysite	E,V	-	-
Mono bromo benzene	V	-	-
Mono chloro acetic Acid	E	-	-
Mono chloro acetone	E	-	-
Mono chloro benzene	V	-	-
Mono chloro benzene	V	-	-
Mono chloro difluoro methane	E	-	-
Mono chloro ethane	V	-	-
Mono chloro phenol	V	-	-
Mono ethanol amine	E	-	-
Mono ethyl amine	E	-	-
Mono isopropanol Amine	C	-	-
Mono methyl Amine	E	-	-
Mono methyl Analine	E	-	-
Mono methyl aniline	V	-	-
Mono methyl Ether	E,V	-	-
Mono methyl Hydrazine	E	-	-
Mono nitro chloro benzene	V	-	-

Mono vinyl Acetylene	V	-	-
Mono vinyl Arsenate	E,V	-	-
Monoammonium Phosphate	E	-	-
Monsel's Salt	E,V	-	-
Mopar Brake Fluid	E	-	-
Morrhua Oil	E,V	-	-
Mosaic Gold	B	-	-
Motor Oil	V	O
Mullite (clay)	E	O
Muriate Of Ammonia	E,V	-	-
Muriatic Acid	E,V	-	-
Mustard	E,V	C
n-Heptane	V	-	-
n-Hexaldehyde	C	-	-
n-Hexaldehyde	E	-	-
n-Hexane	V	-	-
n-Hexene-1	V	-	-
Napalm	V	-	F
Naphtha	V	-	F
Naphthalene	V	-	-
Naphthalenic	V	-	-
Naphthenic Acid	V	-	-
Natural Gas	V	O	F,E
Neatsfoot Oil	V	-	-
Neohexane	V	-	-
Neon	E,V	-	-
Neosol	B	-	-
Neville Acid	V	-	-
Niacin	E	-	-
Nickel	E,V	-	-
Nickel Acetate	E	-	-
Nickel Ammonia Sulfate	V	-	-
Nickel Chloride	E,V	-	-
Nickel Nitrate	E,V	-	-
Nickel Plating Solution	B	-	-
Nickel Salts	E,V	-	-
Nickel Sulfate	-E,V	-	-
Nickel Sulphate	E,V	-	-
Nicotine	V	-	-
Nicotine Bentonite	B	-	-
Nicotine Sulfate	B	-	-
Nicotinic Acid	E	-	-
Niter Cake	E,V	-	-
Niter-potassium Nitrate	E,V	-	-
Niter-sodium Nitrate	E	-	-
Nitrating Acid	N	-	-
Nitric Acid to 100%*	C1	-	F
Nitro carbol	E	-	-
Nitro benzene	V	-	-
Nitro benzine	V	-	-

Nitro benzol	V	-	-
Nitro calcatite	E,V	-	-
Nitro cellulose	C	O	F,E
Nitro Cotton	C	O	F,E
Nitro ethane	C	-	-
Nitro hydrochloric acid	V	O	T
Nitro methane	E	-	-
Nitro muriatic Acid	V	-	-
Nitro propane	E	-	-
Nitrogen Gas	E,V	-	-
Nitrogen Monoxide	E,V	-	-
Nitrogene Tetroxide	C	-	-
Nitrous acid	V	-	-
Nitrous Monoxide	E,V	-	-
Nitrous Oxide	E,V	-	-
Nitroxanthic Acid	V	-	-
Nonanoic Acid	B	-	-
Nonenes	B	-	-
Norge Niter	E,V	-	-
Norge Saltpeter	E,V	-	-
Norway Saltpeter	E,V	-	-
Noryl G.E. phenolic	E	-	-
NRRO	V	-	-
Nut Oil	V	-	-
Nutra sweet	E,V	-	-
Oakite Alkaline Materials	E	-	-
Octa chloro toluene	V	-	-
Octa decadienoic Acid	C	-	-
Octa decane	V	-	-
Octanol	E,V	-	-
Octyl Alcohol	V	-	-
Oil, Corn	V	-	-
Oil, Asphalt Base	V	O
Oil, Bay	V	-	-
Oil, Bone	V	-	-
Oil, Castor	V	-	-
Oil, Cinammon	V	-	-
Oil, Citric	V	-	-
Oil, Clove	V	-	-
Oil, Cocanut	V	-	-
Oil, Cod Liver	V	-	-
Oil, Cotton Seed	V	-	-
Oil, Creosote	V	-	-
Oil, diesel	V	-	-
Oil, Ginger	E,V	-	-
Oil, Hydraulic (petroleun base)	V	-	-
Oil, Lemon	V	-	-
Oil, Linseed	V	-	-
Oil, Lubricating	V	-	-
Oil, MIneral	V	-	-

Oil, Mineral Base	V	-	-
Oil, Mirbane	V	-	-
Oil, Olive	V	-	-
Oil, Orange	V	-	-
Oil, Palm	V	-	-
Oil, Peanut	V	-	-
Oil, Peppermint	V	-	-
Oil, Petroleum Crude	V	-	-
Oil, Pine	V	-	-
Oil, Rapeseed	E,V	-	-
Oil, Red	V	-	-
Oil, Rosin	V	-	-
Oil, Sesamee Seed	V	-	-
Oil, Silicone	E,V	-	-
Oil, Soybean	V	-	-
Oil, Sperm	V	-	-
Oil, Tanning	V	-	-
Oil, Turbine	V	-	-
Oil, Turpentine	V	-	-
Oil, Ucon	V	-	-
Oil, Vegetable	V	-	-
Oil, Vitriol	V	-	-
Oleic Acid	V	-	-
Oleum (Fuming Sulfuric Acid) *	V	O	F
Oleum Lini	V	-	-
Oleum Spirits	V	-	-
Oleyl Alcohol	C	-	-
Olive Oil	V	-	-
Oronite 8200	V	-	-
Oronite 8515	V	-	-
Orthcarsenic Acid	E,V	C	T
Ortho Chloranaline	C	-	-
Ortho Chloro ethyl benzene	V	-	-
Ortho Chloro phenol	C	-	-
Ortho Cresol	C	-	-
Ortho Dichlor benene	V	-	-
Ortho dichloro benzol	V	-	-
Ortho Nitro toluene	C	-	-
Ortho Phosphoric Acid	V	-	-
Orthoboric Acid	E,V	-	-
Orthoxylene	V	-	-
Oxalic Acid (Weak)	E,V	-	-
Oxy ethylene Succinic Acid	V	-	-
Oxygen to 210 F	E,V	-	-
Ozone	E,V	-	-