The Boeing Company · Electronic Components
490128
Scale, Cathode Ray Tube
Part Number490128
ManufacturerThe Boeing Company
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-669-8742 (NSN)
Federal Item NameSCALE,CATHODE RAY TUBE
Federal Supply Class6625 — Test Instruments
Scale Quantity2
Mounting Configuration3 RADIAL MTG TABS 120 DEG APART WHICH SLIP BETWEEN TUBE AND VISOR
Overall Diameter2.875 INCHES NOMINAL
Scale Division Quantity10
Overall Thickness0.020 INCHES NOMINAL
Scale TypeHORIZONTAL AND VERTICAL
MaterialPLASTIC METHYL METHACRYLATE SCALE
Rating MethodWINDING TURNS SINGLE COMPONENT SINGLE WINDING
Turn Quantity10-1/2 SINGLE COMPONENT SINGLE WINDING
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 490128 available?
We can source 490128 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 490128 by The Boeing Company obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 490128 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 490128?
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 490128?
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.