PartsTable
Technical Data Sheet
20211AND20253 ✓ Verified by PartsTable
· GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include phase: SINGLESINGLE, material: PLASTIC SEATPLASTIC SEAT, connection_type: UNTHREADED INTERNAL TUBE SECOND ENDUNTHREADED INTERNAL TUBE SECOND END, connection_style: SOCKET (TUBE) FIRST ENDSOCKET (TUBE) FIRST END, special_features: MULTI VOLTAGE AND MULTI CYCLE COILMULTI VOLTAGE AND MULTI CYCLE COIL, style_designator: STRAIGHT THRUSTRAIGHT THRU. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-00-421-3904, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
20211AND20253
NSN: 4810-00-421-3904
FSC: 4810
CAGE: 04857 — ALTER & SONS INC. (USA)
SPECIFICATIONS
phaseSINGLESINGLE
materialPLASTIC SEATPLASTIC SEAT
connection_typeUNTHREADED INTERNAL TUBE SECOND ENDUNTHREADED INTERNAL TUBE SECOND END
connection_styleSOCKET (TUBE) FIRST ENDSOCKET (TUBE) FIRST END
special_featuresMULTI VOLTAGE AND MULTI CYCLE COILMULTI VOLTAGE AND MULTI CYCLE COIL
style_designatorSTRAIGHT THRUSTRAIGHT THRU
mounting_positionHORIZONTAL OR HORIZONTAL OR VERTICALVERTICAL
frequency_in_hertz50.0 AND 50.0 AND 60.060.0
operating_pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDIAPHRAGMDIAPHRAGM
current_rating_in_amps0.1000.100
maximum_operating_temp240.0 FAHRENHEIT SINGLE RESPONSE240.0 FAHRENHEIT SINGLE RESPONSE DEGF
NSN4810-00-421-3904
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 20211AND20253 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
FLOW CONTROL DEVICE: DIAPHRAGMDIAPHRAGM
CONNECTION STYLE: SOCKET (TUBE) SECOND ENDSOCKET (TUBE) SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.625 INCHES FIRST END0.625 INCHES FIRST END IN
MATERIAL: COPPER ALLOY BODYCOPPER ALLOY BODY
CONNECTION TYPE: UNTHREADED INTERNAL TUBE FIRST ENDUNTHREADED INTERNAL TUBE FIRST END
PHASE: SINGLESINGLE
TECHNICAL CHARACTERISTICS (FLIS)
FLOW CONTROL DEVICEDIAPHRAGMDIAPHRAGM
CONNECTION STYLESOCKET (TUBE) SECOND ENDSOCKET (TUBE) SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.625 INCHES FIRST END0.625 INCHES FIRST END IN
MATERIALCOPPER ALLOY BODYCOPPER ALLOY BODY
CONNECTION STYLESOCKET (TUBE) FIRST ENDSOCKET (TUBE) FIRST END
CONNECTION TYPEUNTHREADED INTERNAL TUBE FIRST ENDUNTHREADED INTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES SECOND END0.500 INCHES SECOND END IN
PHASESINGLESINGLE
MATERIALPLASTIC SEATPLASTIC SEAT
VOLTAGE IN VOLTS AND CURRENT TYPE115.0 AC AND 115.0 AC AND 208.0 AC208.0 AC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
20075Interchangeable
interchangeable cross-reference
interchangeable
6034Interchangeable
interchangeable cross-reference
interchangeable
2508059Interchangeable
interchangeable cross-reference
interchangeable
5497A-41DInterchangeable
interchangeable cross-reference
interchangeable
41902-2Interchangeable
interchangeable cross-reference
interchangeable
1902-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20211AND20253?
20211AND20253 is a RELAY,ELECTROMAGNETIC.
What parts can replace 20211AND20253?
There are 9 known substitutes for 20211AND20253: 20075, 6034, 2508059 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20211AND20253?
20211AND20253 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-00-421-3904. This indicates validated use in U.S. government and defense supply chains.
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