Holt Instrument Laboratories · Electronic Components
250
Calibrator, Electrical Power
Part Number250
ManufacturerHolt Instrument Laboratories
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-019-4671 (NSN)
Federal Item NameCALIBRATOR,ELECTRICAL POWER
Federal Supply Class6625 — Test Instruments
ShapeRECTANGULAR
Calibration TypeRMS VOLTAGE
Vendor Part Numbers7912648
Temp Rating In Deg Celsius At Whic-40.0 MINIMUM AND 204.0 MAXIMUM
Physical FormPASTE
Special Test FeaturesPASTE IS MORE THAN 15 TIMES THAT OF AIR AND MORE THAN 4 TIMES THE CONDUCTIVITY OF TYPICAL SILICONE-BASED GREASES; IT IS
Container TypeTUBE
Unit Package Quantity1
Dielectric Material Voltage Rating300.0
Terminal Manufacturer IdentifyingTM-128 SECOND END ALL CONDUCTORS
MaterialCOPPER CORE CONDUCTOR ALL CONDUCTORS
Conductor Quantity12
Cross Sectional Shape StyleROUND
Style DesignatorINTERNAL CONNECTOR AND LUG
Reference Number Differentiating CAS DIFFERENTIATED BY THE LENGTH REQUIREMENT
Conductor FormSTRANDED ALL CONDUCTORS
Overall Length6.167 FEET
Round Conductor Size20 AWG ALL CONDUCTORS
Cross Section Outside Diameter0.625 INCHES NOMINAL
Conductor Arrangement And Quantity2 SINGLES
Identification Code ColorBLACK
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 250 available?
We can source 250 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 250 by Holt Instrument Laboratories obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 250 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 250?
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 250?
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.