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Technical Data Sheet
PartsTable / COMPONENT / 4563B
4563B ✓ 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 FLOAT,VALVE is a the manufacturer industrial component. Key specifications include shape: CYLINDRICAL, material: COPPER ALLOY, overall_length: 1.223 INCHES NOMINAL IN, connection_type: UNTHREADED, overall_diameter: 0.625 INCHES NOMINAL 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 4820-01-282-2577, 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
4563B
NSN: 4820-01-282-2577
FSC: 4820
CAGE: 22501 — HOWELL LABORATORIES INC DBA HOWELL LABORATORIES INC (USA)
SPECIFICATIONS
shapeCYLINDRICAL
materialCOPPER ALLOY
overall_length1.223 INCHES NOMINAL IN
connection_typeUNTHREADED
overall_diameter0.625 INCHES NOMINAL IN
NSN4820-01-282-2577
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4563B · 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
•
CONNECTION TYPE: UNTHREADED
•
MATERIAL: COPPER ALLOY
•
OVERALL DIAMETER: 0.625 INCHES NOMINAL IN
•
SHAPE: CYLINDRICAL
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPEUNTHREADED
MATERIALCOPPER ALLOY
OVERALL DIAMETER0.625 INCHES NOMINAL IN
SHAPECYLINDRICAL
OVERALL LENGTH1.223 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
33412Interchangeable
interchangeable cross-reference
interchangeable
5242Interchangeable
interchangeable cross-reference
interchangeable
RCF19-29Interchangeable
interchangeable cross-reference
interchangeable
4563Interchangeable
interchangeable cross-reference
interchangeable
FM4563Interchangeable
interchangeable cross-reference
interchangeable
ABT4563Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4563B?
4563B is a FLOAT,VALVE.
What parts can replace 4563B?
There are 12 known substitutes for 4563B: 33412, 5242, RCF19-29 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4563B?
4563B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-282-2577. 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