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Technical Data Sheet
PartsTable / COMPONENT / 19728N
19728N ✓ 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 DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include filter: NOT INCLUDED, material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE, body_style: STRAIGHT THRU, regulation_type: AUTOMATIC SINGLE STAGE, flow_control_device: DIAPHRAGM, valve_loading_method: SPRING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-036-1599, 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
19728N
NSN: 4820-00-036-1599
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
filterNOT INCLUDED
materialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
body_styleSTRAIGHT THRU
regulation_typeAUTOMATIC SINGLE STAGE
flow_control_deviceDIAPHRAGM
valve_loading_methodSPRING
face_to_face_distance8.500 INCHES NOMINAL IN
end_connection_quantity2
remote_actuation_methodPISTON
media_for_which_designedSTEAM
first_end_connection_typeRAISED FACE FLANGE
first_end_flange_thickness0.688 INCHES NOMINAL IN
NSN4820-00-036-1599
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 19728N · 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
•
OUTSIDE DIAMETER: 4.375 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH4.250 INCHES NOMINAL IN
OUTSIDE DIAMETER4.375 INCHES NOMINAL IN
MATERIALSTEEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
1631082Interchangeable
interchangeable cross-reference
interchangeable
CS4720-0018Interchangeable
interchangeable cross-reference
interchangeable
16028Interchangeable
interchangeable cross-reference
interchangeable
22910011Interchangeable
interchangeable cross-reference
interchangeable
18235Interchangeable
interchangeable cross-reference
interchangeable
U51TB-V 1-1/2 INCHInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 19728N?
19728N is a DIAPHRAGM,VALVE,FLAT.
What parts can replace 19728N?
There are 12 known substitutes for 19728N: 1631082, CS4720-0018, 16028 and 9 more. Substitute compatibility should be verified for your specific system.
Is 19728N still available?
19728N 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