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Technical Data Sheet
20219NS41M ✓ 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,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY SEAT, valve_size: 2.000 INCHES IN, bonnet_type: INSIDE SPRING, connection_type: FLANGE ALL ENDS, style_designator: ANGLE FLANGED ENDS, flange_face_design: RECESSED STRAIGHT SECOND END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-187-1103, 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
20219NS41M
NSN: 4820-01-187-1103
FSC: 4820
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialNICKEL ALLOY SEAT
valve_size2.000 INCHES IN
bonnet_typeINSIDE SPRING
connection_typeFLANGE ALL ENDS
style_designatorANGLE FLANGED ENDS
flange_face_designRECESSED STRAIGHT SECOND END
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_deviceDISK
maximum_operating_temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
bonnet_attachment_methodBOLTED
NSN4820-01-187-1103
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 20219NS41M · 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
DISK LOADING METHOD: SPRING
MATERIAL: NICKEL ALLOY SEAT
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
FLANGE FACE DESIGN: RECESSED STRAIGHT SECOND END
STYLE DESIGNATOR: ANGLE FLANGED ENDS
VALVE SIZE: 2.000 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE SEAT
TECHNICAL CHARACTERISTICS (FLIS)
DISK LOADING METHODSPRING
MATERIALNICKEL ALLOY SEAT
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
FLANGE FACE DESIGNRECESSED STRAIGHT SECOND END
MATERIALNICKEL ALLOY STEM
STYLE DESIGNATORANGLE FLANGED ENDS
VALVE SIZE2.000 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B164 ASSN STD SINGLE MATERIAL RESPONSE STEM
BONNET TYPEINSIDE SPRING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
20219Interchangeable
interchangeable cross-reference
interchangeable
319696-530Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-25/4Interchangeable
interchangeable cross-reference
interchangeable
979-1B208Interchangeable
interchangeable cross-reference
interchangeable
CP53B1FE504VInterchangeable
interchangeable cross-reference
interchangeable
D50FF-05 MONEL 2INInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20219NS41M?
20219NS41M is a VALVE,SAFETY RELIEF.
What parts can replace 20219NS41M?
There are 13 known substitutes for 20219NS41M: 20219, 319696-530, MIL-C-25/4 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20219NS41M?
20219NS41M is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-187-1103. This indicates validated use in U.S. government and defense supply chains.
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