Custom Control Sensors · Electronic Components
604P21
Switch, Pressure
Part Number604P21
ManufacturerCustom Control Sensors
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-494-6015 (NSN)
Federal Item NameSWITCH,PRESSURE
Federal Supply Class5930 — Switches
Body Length3.200 INCHES NOMINAL
Contact Adjustment TypeINTERNAL ACTUATION POINT SERRATED NUT AND INTERNAL DEACTUATION POINT SERRATED NUT
Mounting Facility PatternFOUR POSITION RECTANGULAR
Features ProvidedELECTRICAL ACCESS PORT
Unthreaded Mounting Hole Diameter0.265 INCHES NOMINAL
Nominal Thread Size0.250 INCHES SINGLE PRESSURE CONNECTION
Inside Diameter0.250 INCHES NOMINAL SINGLE CONNECTION
Body Width4.100 INCHES NOMINAL
Contact Action StimulusINCREASE
Longest Horizontal Distance Betwee4.250 INCHES NOMINAL
Terminal TypeSCREW
Vendor Part Numbers91523742, A/049/033/76/55, A/049/033/54/57, A/049/033/54 ITEM 57, A/049/033/76 ITEM 55
Cancelled NSN5930-00-488-6821 (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 604P21 available?
We can source 604P21 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 604P21 by Custom Control Sensors obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 604P21 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 604P21?
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 604P21?
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.