Littelfuse · Electronic Components
901-129
Insulator, Washer
Part Number901-129
ManufacturerLittelfuse
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-01-005-2884 (NSN)
Federal Item NameINSULATOR,WASHER
Federal Supply Class5970 — Electrical Insulators
Overall Height0.031 INCHES NOMINAL
MaterialRUBBER CHLOROPRENE CLASS CR OVERALL
Style DesignatorROUND, FLAT
Inside Diameter0.500 INCHES NOMINAL
Outside Diameter0.625 INCHES NOMINAL
Vendor Part Numbers1400-0090
Thread DirectionRIGHT-HAND
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Connector Cable Strain Relief MethCOMPRESSION NUT
Thread Series DesignatorUNS
Connector Locking MethodINTERNALLY THREADED COUPLING NUT
Precious Material And Weight0.010 GOLD GRAINS, TROY
Thread Quantity Per Inch36
Precious Material And LocationCONTACTS AND BODY SURFACES GOLD
Contact RemovabilityNONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Insert MaterialPLASTIC FLUOROCARBON SINGLE MATING END
Contact Surface Treatment DocumentMIL-G-45204,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING
ESD/EMICode A — ESD/EMI sensitive item
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 901-129 available?
We can source 901-129 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 901-129 by Littelfuse obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 901-129 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 901-129?
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 901-129?
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.