Esc Control Electronics LLC · Electronic Components
21A57
Delay Line — Miscellaneous Electrical Components
Part Number21A57
ManufacturerEsc Control Electronics LLC
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-302-5743 (NSN)
Federal Item NameDELAY LINE
Federal Supply Class5999 — Miscellaneous Electrical Components
Body StyleRECTANGULAR
Mounting FacilityWIRE LEAD TERMINAL(S)
Input Impedance Rating50.000 OHMS
Terminal TypeWIRE LEADS
Output Impedance Rating50.000 OHMS
Delay Time Variation MethodTAPPED
Body Width0.530 INCHES MAXIMUM
Section Delay Time24.900 MICROSECONDS MINIMUM SINGLE SECTION AND 25.100 MICROSECONDS MAXIMUM SINGLE SECTION
Body Depth0.800 INCHES MAXIMUM
Frequency Bandwidth50.0 HERTZ MINIMUM AND 70.0 HERTZ MAXIMUM
Inclosure TypeHERMETICALLY SEALED
Vendor Part Numbers170163-1
ESD/EMICode B — 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 21A57 available?
We can source 21A57 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 21A57 by Esc Control Electronics LLC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21A57 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 21A57?
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 21A57?
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.