Reliance Mica · Electronic Components
ST-DF-31A
Insulator, Plate
Part NumberST-DF-31A
ManufacturerReliance Mica
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-00-426-1054 (NSN)
Federal Item NameINSULATOR,PLATE
Federal Supply Class5970 — Electrical Insulators
Overall Height0.002 INCHES MINIMUM AND 0.004 INCHES MAXIMUM
Second Hole Spacing0.580 INCHES NOMINAL
Overall Width0.781 INCHES NOMINAL
First Hole Spacing0.189 INCHES MINIMUM AND 0.191 INCHES MAXIMUM
Unable To DecodeUNABLE TO DECODE
Style DesignatorFLAT, DIAMOND
Fourth Hole Spacing0.200 INCHES NOMINAL
Material Document And ClassificatiASTM D351, CLASS V-3 ASSN STD SINGLE MATERIAL RESPONSE CLEANING WIRE
First Side Radius0.391 INCHES NOMINAL
Fifth Hole Spacing0.100 INCHES NOMINAL
Overall Length1.340 INCHES NOMINAL
Vendor Part Numbers5L5591-002-51
Cancelled NSN5970-00-088-5074 (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 ST-DF-31A available?
We can source ST-DF-31A 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 ST-DF-31A by Reliance Mica obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If ST-DF-31A 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 ST-DF-31A?
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 ST-DF-31A?
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.