MIL-SPEC · Electronic Components
NL422B58-055
Insulator, Bowl
Part NumberNL422B58-055
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-00-959-4488 (NSN)
Federal Item NameINSULATOR,BOWL
Federal Supply Class5970 — Electrical Insulators
Screw Thread Series DesignatorUNF MOUNTING FACILITY
MaterialRUBBER BUTADIENE-STYRENE CLASS SBR GASKET
Material Document And ClassificatiMIL-G-1149, TYPE 1, CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE GASKET
Terminal Wire Hole Depth0.688 INCHES NOMINAL
Thread Length1.062 INCHES NOMINAL
Terminal Wire Hole Diameter0.460 INCHES NOMINAL
Outside Diameter6.750 INCHES NOMINAL
Mounting Bolt Circle Diameter5.500 INCHES NOMINAL
Screw Thread Quantity Per Inch And16 CENTER STUD AND 16 MOUNTING FACILITY
Thread Class And Location2B CENTER STUD AND 2B MOUNTING FACILITY
Height Above Mounting Surface3.500 INCHES NOMINAL
Cancelled NSN5970-00-661-0161 (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 NL422B58-055 available?
We can source NL422B58-055 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 NL422B58-055 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If NL422B58-055 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 NL422B58-055?
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 NL422B58-055?
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.