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B.S.P.T

B.S

D.I.N

D.K.L

D.K.M

D.K.O

D.K.O.-L

D.K.O.-S

D.K.S

FEM.

F.F

FLG.

H.P

H.T.S

I.D

INV.

I.S.O

J.I.C

J.I.S

KG

L.P.

L.P.G.

M

MM

M.S.H.A

M.W.P

N.B.

N.C.B.

NOM.

N.P.S.

N.P.T.F.

O.D.

O.R.F.S.

P.S.I.

P.T.F.E.

Q.A.

Q.C.

Q.R.C.

S.A.E.

STD.

U.N.F.

W.P.

BRITISH STANDARD PIPE TAPER THREAD

BRITISH STANDARD

DEUTSCHE INDUSTRIE NORMEN (GERMAN INDUSTRIAL STANDARD)

DICHT KEGEL LEICHT (METRIC LIGHT SERIES 24 DEG. CONE)

DICHT KEGEL METRIC (METRIC 60 DEG. CONE)

DICHT KEGEL O-RING (METRIC  O-RING SEAL 24  DEG. CONE)

DICHT KEGEL O-RING LEICHT (METRIC  LIGHT O-RING SERIES 24  DEG. CONE)

DICHT KEGEL O-RING SCHWER (METRIC HEAVY O-RING SERIES 24  DEG. CONE)

DICHT KEGEL SCHWER (METRIC HEAVY SERIES 24  DEG. CONE)

FEMALE

FIXED FEMALE

FLANGE

HIGH PRESSURE

HIGH TENSILE STEEL

INSIDE DIAMETER

INVERTED

INTERNATIONAL STANDARD ORGANISATION

JOINT INDUSTRIES COUNCIL (THREAD U.N.)

JAPANESE INDUSTRIAL STANDARD

KILOGRAM

LOW PRESSURE

LIQUIFIED PETROLEUM GAS

MALE

MILLIMETER

MINE SAFETY & HEALTH ADMINISTRATION (U.S.A.)

MAXIMUM WORKING PRESSURE

NOMINAL BORE

NATIONAL COAL BOARD

NOMINAL

NATIONAL PIPE STRAIGHT THREAD

NATIONAL PIPE TAPER FINE THREAD

OUTSIDE DIAMETER

O-RING FACE SEAL (S.A.E. STANDARDS)

POUNDS SQUARE INCH

POLY TETRA FLOURO ETHYLENE

QUALITY ASSURANCE

QUALITY CONTROL

QUICK RELEASE COUPLING

SOCIETY OF AUTOMOTIVE ENGINEERS (THREAD U.N.) OR (FLANGE)

STANDARD

UNIFIED NATIONAL FINE THREAD

WORKING PRESSURE