Melstrom Manufacturing Corporation · Electronic Components
145-149
Retainer, Electron Tube
Part Number145-149
ManufacturerMelstrom Manufacturing Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5960-00-256-0577 (NSN)
Federal Item NameRETAINER,ELECTRON TUBE
Federal Supply Class5960 — Electron Tubes
Electron Tube Base Accommodated Di+1.337 TO 1.377 INCHES
MaterialSTEEL
Accommodated Item Securing DeviceCLAMP
Style DesignatorSPRING TENSION LOCK RING
Overall Diameter1.812 INCHES NOMINAL
Mounting Facility Type And Quantit2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Surface TreatmentCADMIUM OR ZINC
Unthreaded Mounting Hole Diameter0.144 INCHES NOMINAL SINGLE MOUNTING FACILITY
Distance Between Mounting Facility1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Vendor Part Numbers308-1007P1, 128203, 8168531, 37003430
Cancelled NSN5960-00-698-3759 (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 145-149 available?
We can source 145-149 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 145-149 by Melstrom Manufacturing Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 145-149 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 145-149?
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 145-149?
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.