High Voltage Engineering Corp. Natvar Co Div · Electronic Components
U4018
Insulation Sleeving, Electrical
Part NumberU4018
ManufacturerHigh Voltage Engineering Corp. Natvar Co Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-00-729-2969 (NSN)
Federal Item NameINSULATION SLEEVING,ELECTRICAL
Federal Supply Class5970 — Electrical Insulators
Inside Diameter0.040 INCHES MINIMUM AND 0.049 INCHES MAXIMUM
ColorCLEAR
Minimum Tensile Strength1800 POUNDS PER SQUARE INCH
Departure From Cited DocumentAS MOD BY COLOR
Style DesignatorNONSHRINKABLE
FlexibilityFLEXIBLE
Nondefinitive Spec Std Data1 CATEGORY AND I CLASS AND U FORM AND C GRADE AND 18 AWG SIZE AND UA SUBFORM AND F TYPE
Dielectric Material Voltage Rating800.0 VOLTS PER MIL /0.001 INCH/
Temp Rating-10.0 CELSIUS AND 105.0 CELSIUS
Environmental ProtectionFLAME RESISTANT AND MILDEW RESISTANT AND OIL RESISTANT
MaterialPLASTIC POLYVINYL CHLORIDE (PVC)
Vendor Part NumbersS2357, 1755602, 596A10-3, P-105/18-1, SM-A-680088-5
Cancelled NSN5970-00-883-9950 (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 U4018 available?
We can source U4018 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 U4018 by High Voltage Engineering Corp. Natvar Co Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If U4018 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 U4018?
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 U4018?
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.