Keystone Electronics · Electronic Components
1490
SPACER PHENOLIC #8 SCREW 1/4"L
Part Number1490
ManufacturerKeystone Electronics
AvailabilityAvailable to order — request a quote
Specifications
NSN5975-00-439-2052 (NSN)
Federal Item NameEXTENSION,JUNCTION BOX
Federal Supply Class5975 — Electrical Hardware and Supplies
Inside Depth0.875 INCHES NOMINAL
Cover Mounting Hole Quantity2
Style DesignatorRECTANGULAR-ROUNDED CORNERS
Overall Width2.000 INCHES NOMINAL
Standard Wiring Device Quantity1
Cover Attachment MethodSCREW
Vendor Part NumbersSBEX
Conduit Type AccommodatedRIGID METALLIC THICKWALL FIRST END
Surface TreatmentZINC
MaterialALUMINUM-COPPER FREE
End TypeINTERNAL THREAD SECOND END
Item Accommodated Trade Size0.500 INCHES FIRST END
Overall Length3.125 INCHES NOMINAL
Deflection Angle90.0 DEGREES
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Overall Diameter1.250 INCHES NOMINAL
Inclosure TypeFULLY INCLOSED
Terminal Type And Quantity6 WIRE LEAD
Winding Function And Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Overall Height1.120 INCHES NOMINAL
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 1490 available?
We can source 1490 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 1490 by Keystone Electronics obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1490 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 1490?
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 1490?
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.