The Delbert Blinn Co Inc. · Electronic Components
DM103-4
Insulator, Plate
Part NumberDM103-4
ManufacturerThe Delbert Blinn Co Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-00-173-4058 (NSN)
Federal Item NameINSULATOR,PLATE
Federal Supply Class5970 — Electrical Insulators
First Side Radius0.500 INCHES NOMINAL
Overall Height0.004 INCHES NOMINAL
Fourth Hole Spacing0.430 INCHES NOMINAL
MaterialMICA OVERALL
Style DesignatorFLAT, DIAMOND
Fifth Hole Spacing0.215 INCHES NOMINAL
Second Hole Diameter0.166 INCHES NOMINAL
Third Hole Spacing1.187 INCHES NOMINAL
Overall Length1.655 INCHES NOMINAL
Second Hole Spacing0.522 INCHES NOMINAL
Overall Width1.053 INCHES MINIMUM AND 1.073 INCHES MAXIMUM
Vendor Part Numbers421-0270-003
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 DM103-4 available?
We can source DM103-4 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 DM103-4 by The Delbert Blinn Co Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If DM103-4 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 DM103-4?
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 DM103-4?
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.