U8
Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
4300 Catalog
General Technical
Port End Summary
Port End Type
Pressure –
Pressure –
Temper-
Contami-
Seal
Fluid
and Seal Style
Illustration
Dynamic
Static
ature
Positioning
nation
Reliability
Reusability Compatibility
Tapered
(NPT, NPTF,
BSPT and
Metric Taper)
O-Ring in
Chamfer
(SAE J1926,
ISO 6149 and
JIS B2351)
Spot Face
with ED Seal
(ISO 1179-2
and ISO
9974-2)
Spot Face
with Bonded
Seal
(ISO 1179 and
ISO 9974)
Spot Face with
Cutting Face
(ISO 1179-4
and ISO
9974-3)
Spot Face with
O-Ring and
Retaining Ring
(ISO 1179-3)
Spot Face
with Hard
Metal Seal
(ISO 1179 and
ISO 9974)
Spot Face with
Soft Metal Seal
(ISO 1179 and
Iso 9974 with
copper gasket)
4 Bolt Flange
(SAE J518 and
ISO 6162)
4 Bolt Flange
(ISO 6164)
Poor
Good
Excellent
Poor
Poor
Poor
Poor
Excellent
Excellent
Excellent
Limited
Excellent
Very
Excellent
Excellent
Limited
by Seal
Good
by Seal
Excellent
Excellent
Limited
Not
Very
Excellent
Excellent
Limited
by Seal
Applicable
Good
by Seal
Good
Good
Good
Not
Very
Good
Excellent
Limited
Applicable
Good
by Seal
Poor
Fair
Excellent
Not
Fair
Poor
Poor
Excellent
Applicable
Good
Good
Good
Excellent
Very
Good
Excellent
Limited
Good
by Seal
Poor
Fair
Excellent
Not
Fair
Poor
Poor
Excellent
Applicable
Poor
Fair
Good
Not
Very
Poor
Fair
Excellent
Applicable
Good
Excellent
Excellent
Good
Good
Very
Good
Excellent
Limited
Good
by Seal
Excellent
Excellent
Good
Good
Good
Good
Excellent
Limited
by Seal