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PartsTable / COMPONENT / N-10263-20-1 3IN
N-10263-20-1 3IN ✓ 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,STOP-CHECK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416 STEM, bonnet_type: OUTSIDE SCREW-YOKE, connection_style: BEVELED (PIPE) FIRST END, style_designator: ANGLE, operating_pressure: 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, flow_control_device: DISK. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-045-5772, 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
N-10263-20-1 3IN
NSN: 4820-00-045-5772
FSC: 4820
CAGE: 95995 — WALWORTH CO THE (USA)
SPECIFICATIONS
materialSTEEL COMP 416 STEM
bonnet_typeOUTSIDE SCREW-YOKE
connection_styleBEVELED (PIPE) FIRST END
style_designatorANGLE
operating_pressure1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
maximum_operating_temp975.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodMANUAL
bonnet_attachment_methodPRESSURE SEAL, RING TYPE
criticality_code_justificationZZZY
nominal_pipe_size_accommodated3.000 INCHES FIRST END IN
reference_number_differentiating_characteristicsQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
NSN4820-00-045-5772
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: N-10263-20-1 3IN · 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
•
BONNET ATTACHMENT METHOD: PRESSURE SEAL, RING TYPE
•
STYLE DESIGNATOR: ANGLE
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
OPERATING PRESSURE: 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MATERIAL: STEEL COMP 416 STEM
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
•
BONNET TYPE: OUTSIDE SCREW-YOKE
•
NOMINAL PIPE SIZE ACCOMMODATED: 3.000 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
BONNET ATTACHMENT METHODPRESSURE SEAL, RING TYPE
STYLE DESIGNATORANGLE
CRITICALITY CODE JUSTIFICATIONZZZY
OPERATING PRESSURE1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALSTEEL COMP 416 STEM
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
BONNET TYPEOUTSIDE SCREW-YOKE
NOMINAL PIPE SIZE ACCOMMODATED3.000 INCHES FIRST END IN
CONNECTION STYLEBEVELED (PIPE) FIRST END
MAXIMUM OPERATING TEMP975.0 FAHRENHEIT SINGLE RESPONSE DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
MIL-V-22052Interchangeable
interchangeable cross-reference
interchangeable
SS845-1889557ASSYGSC3INInterchangeable
interchangeable cross-reference
interchangeable
SS845-1889557ASSYGSC3INL1Interchangeable
interchangeable cross-reference
interchangeable
2620-922X5ASSYGS4INInterchangeable
interchangeable cross-reference
interchangeable
5295PSB 4INL1Interchangeable
interchangeable cross-reference
interchangeable
6-5295-57-040-16AL1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N-10263-20-1 3IN?
N-10263-20-1 3IN is a VALVE,STOP-CHECK.
What parts can replace N-10263-20-1 3IN?
There are 20 known substitutes for N-10263-20-1 3IN: MIL-V-22052, SS845-1889557ASSYGSC3IN, SS845-1889557ASSYGSC3INL1 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N-10263-20-1 3IN?
N-10263-20-1 3IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-045-5772. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026