PartsTable
Technical Data Sheet
21U1143 PIECE 4287 ✓ 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,GLOBE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 FLOW CONTROL DEVICE, seat_angle: 45.0 DEGREES ALL ENDS, bonnet_type: INSIDE SCREW, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, offset_distance: 0.500 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-276-9021, 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
21U1143 PIECE 4287
NSN: 4820-00-276-9021
FSC: 4820
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 OR NICKEL ALLOY R-405 FLOW CONTROL DEVICE
seat_angle45.0 DEGREES ALL ENDS
bonnet_typeINSIDE SCREW
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
offset_distance0.500 INCHES IN
connection_styleFLARED (TUBE) ALL ENDS
style_designatorSTRAIGHT THRU W/OFFSET
thread_directionRIGHT-HAND ALL ENDS
features_providedBONNET PACKING
mounting_facilityLUG(S)
operating_pressure500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NSN4820-00-276-9021
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 21U1143 PIECE 4287 · 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
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS THIRD RESPONSE
THREAD CLASS: 2A ALL ENDS A
MATERIAL: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 FLOW CONTROL DEVICE
VALVE OPERATION METHOD: MANUAL
FLOW CONTROL DEVICE: DISK
BONNET TYPE: INSIDE SCREW
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS THIRD RESPONSE
THREAD CLASS2A ALL ENDS A
MATERIALNICKEL ALLOY 400 OR NICKEL ALLOY R-405 FLOW CONTROL DEVICE
VALVE OPERATION METHODMANUAL
MATERIALCOPPER ALLOY BODY
FLOW CONTROL DEVICEDISK
BONNET TYPEINSIDE SCREW
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
MAXIMUM OPERATING TEMP275.0 FAHRENHEIT SINGLE RESPONSE DEGF
THREAD DIRECTIONRIGHT-HAND ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
5154Interchangeable
interchangeable cross-reference
interchangeable
DS-934338Interchangeable
interchangeable cross-reference
interchangeable
10-292730Interchangeable
interchangeable cross-reference
interchangeable
127CInterchangeable
interchangeable cross-reference
interchangeable
012-500-0004Interchangeable
interchangeable cross-reference
interchangeable
TVR12-11Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21U1143 PIECE 4287?
21U1143 PIECE 4287 is a VALVE,GLOBE.
What parts can replace 21U1143 PIECE 4287?
There are 15 known substitutes for 21U1143 PIECE 4287: 5154, DS-934338, 10-292730 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21U1143 PIECE 4287?
21U1143 PIECE 4287 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-276-9021. This indicates validated use in U.S. government and defense supply chains.
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