AUK · Electronic Components
A4558
Low Noise Dual OP AMP (The A4558 is a monolithic Integrated Circuit designed for dual operational amplifier.)
Part NumberA4558
ManufacturerAUK
AvailabilityAvailable to order — request a quote
Specifications
NSN4730-00-571-6118 (NSN)
Federal Item NameTEE,TUBE
MaterialCOPPER ALLOY OVERALL
Special FeaturesSEATING SURFACES FINISHED TO 100 MICROINCH RMS MAX ON 3 ENDS.ANNEAL 850 DEG F TO ROCKWELL 350 HARDNESS
Nominal Thread Size0.750 INCHES FIRST END
Nominal Outside Diameter Tube Acco0.250 INCHES THIRD END; 0.500 INCHES FIRST END
Seat Angle45.0 DEGREES THIRD END; 45.0 DEGREES FIRST END
Connection TypeTHREADED EXTERNAL TUBE FIRST END; THREADED EXTERNAL TUBE THIRD END
Thread Series DesignatorUNF FIRST END
Connection StyleFLARED (TUBE) FIRST END; FLARED (TUBE) THIRD END
Thread Class2A THIRD END; 2A FIRST END
Leg Length1.160 INCHES NOMINAL THIRD END; 1.160 INCHES NOMINAL FIRST END
Federal Supply Class4730 — Hose, Pipe, Tube, Lubrication, And Railing Fittings
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is A4558 available?
We can source A4558 even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is A4558 by AUK obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A4558 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like A4558?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for A4558?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.