PartsTable
Technical Data Sheet
52-20S-2IN ✓ 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 VALVE,VENT-CHECK is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OR STEEL OVERALL, connection_type: UNTHREADED INTERNAL PIPE ALL ENDS, connection_style: SOCKET (PIPE) ALL ENDS, special_features: WITH FLAME SCREEN, style_designator: STRAIGHT THRU, mounting_position: VERTICAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-134-3545, 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
52-20S-2IN
NSN: 4820-01-134-3545
FSC: 4820
CAGE: 09032 — TATE ANDALE, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OR STEEL OVERALL
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
connection_styleSOCKET (PIPE) ALL ENDS
special_featuresWITH FLAME SCREEN
style_designatorSTRAIGHT THRU
mounting_positionVERTICAL
flow_control_deviceBALL
valve_operation_methodAUTOMATIC
nominal_pipe_size_accommodated2.000 INCHES ALL ENDS IN
NSN4820-01-134-3545
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 52-20S-2IN · 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
MOUNTING POSITION: VERTICAL
MATERIAL: COPPER ALLOY OR STEEL OVERALL
NOMINAL PIPE SIZE ACCOMMODATED: 2.000 INCHES ALL ENDS IN
CONNECTION TYPE: UNTHREADED INTERNAL PIPE ALL ENDS
FLOW CONTROL DEVICE: BALL
STYLE DESIGNATOR: STRAIGHT THRU
CONNECTION STYLE: SOCKET (PIPE) ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING POSITIONVERTICAL
SPECIAL FEATURESWITH FLAME SCREEN
MATERIALCOPPER ALLOY OR STEEL OVERALL
NOMINAL PIPE SIZE ACCOMMODATED2.000 INCHES ALL ENDS IN
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
FLOW CONTROL DEVICEBALL
STYLE DESIGNATORSTRAIGHT THRU
CONNECTION STYLESOCKET (PIPE) ALL ENDS
VALVE OPERATION METHODAUTOMATIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
20X358Interchangeable
interchangeable cross-reference
interchangeable
11A6841Interchangeable
interchangeable cross-reference
interchangeable
R003728RInterchangeable
interchangeable cross-reference
interchangeable
35089Interchangeable
interchangeable cross-reference
interchangeable
00044Interchangeable
interchangeable cross-reference
interchangeable
LL-3341-91Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 52-20S-2IN?
52-20S-2IN is a VALVE,VENT-CHECK.
What parts can replace 52-20S-2IN?
There are 9 known substitutes for 52-20S-2IN: 20X358, 11A6841, R003728R and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 52-20S-2IN?
52-20S-2IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-134-3545. This indicates validated use in U.S. government and defense supply chains.
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