PartsTable
Technical Data Sheet
20210H51MCP ✓ 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: COPPER ALLOY 922 BODY, bonnet_type: INSIDE SPRING, connection_type: UNTHREADED INTERNAL PIPE FIRST END, connection_style: GASKET SEAL (PIPE) FIRST END, style_designator: ANGLE, disk_loading_method: SPRING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-171-4392, 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
20210H51MCP
NSN: 4820-01-171-4392
FSC: 4820
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialCOPPER ALLOY 922 BODY
bonnet_typeINSIDE SPRING
connection_typeUNTHREADED INTERNAL PIPE FIRST END
connection_styleGASKET SEAL (PIPE) FIRST END
style_designatorANGLE
disk_loading_methodSPRING
flow_control_deviceDISK
valve_operation_methodAUTOMATIC
bonnet_attachment_methodBOLTED
adjustable_pressure_range+45.0 TO 55.0 POUNDS PER SQUARE INCH LBS
criticality_code_justificationZZZY
nominal_pipe_size_accommodated0.500 INCHES FIRST END IN
NSN4820-01-171-4392
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 20210H51MCP · 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
VALVE OPERATION METHOD: AUTOMATIC
CRITICALITY CODE JUSTIFICATION: ZZZY
MATERIAL: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 FLOW CONTROL DEVICE
STYLE DESIGNATOR: ANGLE
CONNECTION STYLE: GASKET SEAL (PIPE) FIRST END
CONNECTION TYPE: UNTHREADED INTERNAL PIPE FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
VALVE OPERATION METHODAUTOMATIC
CRITICALITY CODE JUSTIFICATIONZZZY
MATERIALNICKEL ALLOY 400 OR NICKEL ALLOY R-405 FLOW CONTROL DEVICE
STYLE DESIGNATORANGLE
MATERIALNICKEL ALLOY 400 OR NICKEL ALLOY R-405 SEAT
CONNECTION STYLEGASKET SEAL (PIPE) FIRST END
MATERIALNICKEL ALLOY 400 OR NICKEL ALLOY R-405 STEM
CONNECTION TYPEUNTHREADED INTERNAL PIPE FIRST END
DISK LOADING METHODSPRING
BONNET ATTACHMENT METHODBOLTED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
20210J02S0045Interchangeable
interchangeable cross-reference
interchangeable
20210H51MInterchangeable
interchangeable cross-reference
interchangeable
D54UU-05 1/2 INCHInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 20210H51MCP?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 20210H51MCP?
20210H51MCP is a VALVE,SAFETY RELIEF.
What parts can replace 20210H51MCP?
There are 3 known substitutes for 20210H51MCP: 20210J02S0045, 20210H51M, D54UU-05 1/2 INCH. Substitute compatibility should be verified for your specific system.
What is the NSN for 20210H51MCP?
20210H51MCP is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-171-4392. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 20210H51MCP