PartsTable
Technical Data Sheet
21U1143PC4290 ✓ 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,ANGLE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, seat_angle: 45.0 DEGREES FIRST END, bonnet_type: INSIDE SCREW, thread_class: 2A FIRST END A, connection_type: THREADED INTERNAL PIPE SECOND END, connection_style: PLAIN,OPTIONAL END(PIPE) 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 4820-00-273-8933, 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
21U1143PC4290
NSN: 4820-00-273-8933
FSC: 4820
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
seat_angle45.0 DEGREES FIRST END
bonnet_typeINSIDE SCREW
thread_class2A FIRST END A
connection_typeTHREADED INTERNAL PIPE SECOND END
connection_stylePLAIN,OPTIONAL END(PIPE) SECOND END
style_designatorANGLE
thread_directionRIGHT-HAND SECOND END
features_providedBONNET PACKING
operating_pressure200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
nominal_thread_size0.750 INCHES FIRST END IN
NSN4820-00-273-8933
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 21U1143PC4290 · 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
TEST DATA DOCUMENT: 81601-N14739 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
MATERIAL: COPPER ALLOY BODY
THREAD SERIES DESIGNATOR: UNF FIRST END
NOMINAL PIPE SIZE ACCOMMODATED: 0.375 INCHES SECOND END IN
NOMINAL THREAD SIZE: 0.375 INCHES SECOND END IN
THREAD DIRECTION: RIGHT-HAND SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
TEST DATA DOCUMENT81601-N14739 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
MATERIALCOPPER ALLOY BODY
THREAD SERIES DESIGNATORUNF FIRST END
NOMINAL PIPE SIZE ACCOMMODATED0.375 INCHES SECOND END IN
MATERIALCOPPER ALLOY SEAT
NOMINAL THREAD SIZE0.375 INCHES SECOND END IN
THREAD DIRECTIONRIGHT-HAND SECOND END
THREAD DIRECTIONRIGHT-HAND FIRST END
FLOW CONTROL DEVICEDISK
THREAD CLASS2A FIRST END A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
11067467Interchangeable
interchangeable cross-reference
interchangeable
4290Interchangeable
interchangeable cross-reference
interchangeable
901-166Interchangeable
interchangeable cross-reference
interchangeable
8-50-ITInterchangeable
interchangeable cross-reference
interchangeable
181ABInterchangeable
interchangeable cross-reference
interchangeable
B4290Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21U1143PC4290?
21U1143PC4290 is a VALVE,ANGLE.
What parts can replace 21U1143PC4290?
There are 15 known substitutes for 21U1143PC4290: 11067467, 4290, 901-166 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21U1143PC4290?
21U1143PC4290 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-273-8933. This indicates validated use in U.S. government and defense supply chains.
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