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Technical Data Sheet
PartsTable / COMPONENT / 20AGX4G
20AGX4G ✓ 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

VALVE,REGULATING,FLUID PRESSURE. Key specifications include filter: NOT INCLUDEDNOT INCLUDED, material: COPPER ALLOY STEMCOPPER ALLOY STEM, body_style: STRAIGHT THRUSTRAIGHT THRU, temp_rating: 175.0 FAHRENHEIT MAXIMUM175.0 FAHRENHEIT MAXIMUM DEGF, regulation_type: 1ST STAGE MANUAL, 2ND STAGE AUTOMATIC1ST STAGE MANUAL, 2ND STAGE AUTOMATIC, unable_to_decode: UNABLE TO DECODEUNABLE TO DECODE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-627-9176, 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
20AGX4G
NSN: 4820-00-627-9176
FSC: 4820
CAGE: K7986 — IMI NORGREN SALES LTD (GBR)
SPECIFICATIONS
filterNOT INCLUDEDNOT INCLUDED
materialCOPPER ALLOY STEMCOPPER ALLOY STEM
body_styleSTRAIGHT THRUSTRAIGHT THRU
temp_rating175.0 FAHRENHEIT MAXIMUM175.0 FAHRENHEIT MAXIMUM DEGF
regulation_type1ST STAGE MANUAL, 2ND STAGE AUTOMATIC1ST STAGE MANUAL, 2ND STAGE AUTOMATIC
special_featuresFURNISHED W/TWO INT THD GAUGE PORTS 0.125 NPT AND TWO PIPE PLUGSFURNISHED W/TWO INT THD GAUGE PORTS 0.125 NPT AND TWO PIPE PLUGS
unable_to_decodeUNABLE TO DECODEUNABLE TO DECODE
surface_treatmentANODIZE OUTSIDEANODIZE OUTSIDE
valve_stem_designSINGLE SEATSINGLE SEAT
flow_control_deviceDISK, FLAT, TOP AND BOTTOM GUIDEDDISK, FLAT, TOP AND BOTTOM GUIDED
valve_loading_methodSPRINGSPRING
manual_control_methodTEE HANDLETEE HANDLE
NSN4820-00-627-9176
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20AGX4G · 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
•
FIRST END STYLE DESIGNATOR: PLAINPLAIN
•
SURFACE TREATMENT: ANODIZE OUTSIDEANODIZE OUTSIDE
•
FILTER: NOT INCLUDEDNOT INCLUDED
•
MATERIAL: COPPER ALLOY STEMCOPPER ALLOY STEM
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICALIDENTICAL
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1/2-14 NPT FIRST END1/2-14 NPT FIRST END
•
TEMP RATING: 175.0 FAHRENHEIT MAXIMUM175.0 FAHRENHEIT MAXIMUM DEGF
•
BODY STYLE: STRAIGHT THRUSTRAIGHT THRU
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END STYLE DESIGNATORPLAINPLAIN
SURFACE TREATMENTANODIZE OUTSIDEANODIZE OUTSIDE
FILTERNOT INCLUDEDNOT INCLUDED
MATERIALCOPPER ALLOY STEMCOPPER ALLOY STEM
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICALIDENTICAL
THREAD SIZE AND SERIES/TYPE DESIGNATOR1/2-14 NPT FIRST END1/2-14 NPT FIRST END
TEMP RATING175.0 FAHRENHEIT MAXIMUM175.0 FAHRENHEIT MAXIMUM DEGF
BODY STYLESTRAIGHT THRUSTRAIGHT THRU
FLOW CONTROL DEVICEDISK, FLAT, TOP AND BOTTOM GUIDEDDISK, FLAT, TOP AND BOTTOM GUIDED
END CONNECTION QUANTITY22
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
RA1705Interchangeable
interchangeable cross-reference
interchangeable
346537-3Interchangeable
interchangeable cross-reference
interchangeable
RCP702TInterchangeable
interchangeable cross-reference
interchangeable
11-002-061-8CInterchangeable
interchangeable cross-reference
interchangeable
11-002-061Interchangeable
interchangeable cross-reference
interchangeable
95329991Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20AGX4G?
20AGX4G is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 20AGX4G?
There are 8 known substitutes for 20AGX4G: RA1705, 346537-3, RCP702T and 5 more. Substitute compatibility should be verified for your specific system.
Is 20AGX4G still available?
20AGX4G is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026