Kearfott · Electronic Components
R1031-1A
Resolver, Electrical
Part NumberR1031-1A
ManufacturerKearfott
AvailabilityAvailable to order — request a quote
Specifications
NSN5990-00-819-3467 (NSN)
Federal Item NameRESOLVER,ELECTRICAL
Federal Supply Class5990 — Synchros and Resolvers
Zso Impedance Angle In Deg69.00 NOMINAL
Zso Impedance Magnitude In Ohms520.00 NOMINAL
Actuator Friction Torque At Minus16.0 CENTIMETER-GRAMS NOMINAL
Zro Impedance Angle In Deg73.50 NOMINAL
Body StyleSTANDARD ROUND A
Pilot Diameter0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM
Flange Diameter0.7450 INCHES MINIMUM AND 0.7530 INCHES MAXIMUM
Undercut Width0.0620 INCHES NOMINAL
Flange Thickness0.0620 INCHES NOMINAL
Overall Length1.7660 INCHES MINIMUM AND 1.7670 INCHES MAXIMUM
Undercut Diameter0.6870 INCHES NOMINAL
Vendor Part NumbersU-219683, 5480590P25
Cancelled NSN5990-00-819-2614 (cancelled)
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 R1031-1A available?
We can source R1031-1A 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 R1031-1A by Kearfott obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If R1031-1A 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 R1031-1A?
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 R1031-1A?
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.