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Technical Data Sheet
PartsTable / COMPONENT / 20300-A
20300-A ✓ 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 BELT,V is a the manufacturer industrial component. Key specifications include shape: RECTANGULAR, width: 2.0000 INCHES NOMINAL2.0000 INCHES NOMINAL IN, length: 53.0000 INCHES NOMINAL53.0000 INCHES NOMINAL IN, thickness: 0.3750 INCHES NOMINAL0.3750 INCHES NOMINAL IN, mounting_hole_type: UNTHREADED, mounting_hole_diameter: 0.5620 INCHES NOMINAL ALL HOLES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-00-202-6077, 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
20300-A
NSN: 4810-00-202-6077
FSC: 4810
CAGE: 81997 — EATON CORP CONTROLS DIV (USA)
SPECIFICATIONS
shapeRECTANGULAR
width2.0000 INCHES NOMINAL2.0000 INCHES NOMINAL IN
length53.0000 INCHES NOMINAL53.0000 INCHES NOMINAL IN
thickness0.3750 INCHES NOMINAL0.3750 INCHES NOMINAL IN
mounting_hole_typeUNTHREADED
mounting_hole_diameter0.5620 INCHES NOMINAL ALL HOLES IN
mounting_hole_quantity2
NSN4810-00-202-6077
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20300-A · 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 STYLE: GASKET SEAL(BOSS) FIRST END
•
CURRENT RATING IN AMPS: 0.500
•
OPERATING PRESSURE: 120.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
THREAD CLASS: 3B FIRST END
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
FLOW CONTROL DEVICE: DISK
•
STYLE DESIGNATOR: STRAIGHT THRU
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEGASKET SEAL(BOSS) FIRST END
CURRENT RATING IN AMPS0.500
OPERATING PRESSURE120.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
CURRENT RATING IN AMPS0.500
THREAD CLASS3B FIRST END
THREAD DIRECTIONRIGHT-HAND FIRST END
FLOW CONTROL DEVICEDISK
STYLE DESIGNATORSTRAIGHT THRU
THREAD QUANTITY PER INCH20 FIRST END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
19727AInterchangeable
interchangeable cross-reference
interchangeable
178450Interchangeable
interchangeable cross-reference
interchangeable
5687Interchangeable
interchangeable cross-reference
interchangeable
20300-AInterchangeable
interchangeable cross-reference
interchangeable
30C65827Interchangeable
Same NIIN cross-reference
interchangeable
4102407Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20300-A?
20300-A is a BELT,V.
What parts can replace 20300-A?
There are 6 known substitutes for 20300-A: 19727A, 178450, 5687 and 3 more. Substitute compatibility should be verified for your specific system.
Is 20300-A still available?
20300-A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026