3M · Electronic Components
851
PCB DISCS 3MM
Part Number851
Manufacturer3M
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-087-2973 (NSN)
Federal Item NameTEST SET,SEMICONDUCTOR DEVICE
Federal Supply Class6625 — Test Instruments
Depth286.0 MILLIMETERS NOMINAL
Test Type For Which DesignedIN-CIRCUIT TESTING OF COMPONENTS
Reference Data And LiteratureTO 33A1-15-55-4
Ac Voltage Rating115.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED
Enclosure FeatureSINGLE ITEM W/HOUSING
Electrical Power Source RelationshOPERATING
Width250.0 MILLIMETERS NOMINAL
Frequency Rating60.0 HERTZ NOMINAL LOCATION NOT OTHERWISE SPECIFIED
Height86.0 MILLIMETERS NOMINAL
PhaseSINGLE LOCATION NOT OTHERWISE SPECIFIED
ESD/EMICode A — ESD/EMI sensitive item
Conduit Type AccommodatedRIGID METALLIC THICKWALL SINGLE END
Style DesignatorSTANDARD
Item Accommodated Trade Size4.000 INCHES SINGLE END
Distance Across Points Of Hexagona5.250 INCHES NOMINAL
MaterialIRON MALLEABLE
Surface TreatmentCADMIUM
ColorBLACK SINGLE ACTUATOR
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION SINGLE SWITCH UNIT
Terminal Type And Quantity2 WIRE LEAD
Actuator Height0.219 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 851 available?
We can source 851 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 851 by 3M obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 851 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 851?
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 851?
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.