Boeing · Electronic Components
MMS-809-2-B-1/4
Insulation Sleeving, Electrical
Part NumberMMS-809-2-B-1/4
ManufacturerBoeing
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-01-228-8321 (NSN)
Federal Item NameINSULATION SLEEVING,ELECTRICAL
Federal Supply Class5970 — Electrical Insulators
Expanded Inside Diameter0.250 INCHES MINIMUM
Recovered Inside Diameter0.125 INCHES MAXIMUM
MaterialPLASTIC POLYOLEFIN
FlexibilitySEMIRIGID
Style DesignatorSHRINKABLE
Overall Length1.750 INCHES NOMINAL
Temp Rating-55.0 CELSIUS AND 135.0 CELSIUS
Environmental ProtectionCORROSION RESISTANT AND FLAME RESISTANT AND MILDEW RESISTANT AND WATER RESISTANT
ColorRED
Heat Shrinkage Rating In Percent50.0
Recovered Wall Thickness0.015 INCHES MINIMUM AND 0.021 INCHES MAXIMUM
Vendor Part NumbersTW-TMS-1/4-1.75-2
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 MMS-809-2-B-1/4 available?
We can source MMS-809-2-B-1/4 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 MMS-809-2-B-1/4 by Boeing obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MMS-809-2-B-1/4 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 MMS-809-2-B-1/4?
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 MMS-809-2-B-1/4?
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.