PartsTable
Technical Data Sheet
55H19 ✓ 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 FUSE LINK,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY STEM, bonnet_type: INSIDE SPRING, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN,OPTIONAL END(PIPE) ALL ENDS, style_designator: ANGLE, thread_direction: RIGHT-HAND ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-287-2189, 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
55H19
NSN: 4820-00-287-2189
FSC: 4820
CAGE: 36346 — UNION CARBIDE CORP SUB OF DOW CO THE (USA)
SPECIFICATIONS
materialCOPPER ALLOY STEM
bonnet_typeINSIDE SPRING
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN,OPTIONAL END(PIPE) ALL ENDS
style_designatorANGLE
thread_directionRIGHT-HAND ALL ENDS
features_providedPRESSURE TIGHT OUTLET SIDE
disk_loading_methodSPRING
flow_control_deviceDISK
nominal_thread_size0.750 INCHES ALL ENDS IN
valve_operation_methodAUTOMATIC
bonnet_attachment_methodTHREADED
NSN4820-00-287-2189
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 55H19 · 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 TYPE: INSIDE SPRING
THREAD SERIES DESIGNATOR: NPT ALL ENDS
MATERIAL: COPPER ALLOY SEAT
OPENING PRESSURE SETTING: 30.0 POUNDS PER SQUARE INCH LBS
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
STYLE DESIGNATOR: ANGLE
TECHNICAL CHARACTERISTICS (FLIS)
BONNET TYPEINSIDE SPRING
THREAD SERIES DESIGNATORNPT ALL ENDS
MATERIALCOPPER ALLOY SEAT
OPENING PRESSURE SETTING30.0 POUNDS PER SQUARE INCH LBS
MATERIALCOPPER ALLOY STEM
MATERIALCOPPER ALLOY BODY
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
STYLE DESIGNATORANGLE
NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES FIRST END IN
FLOW CONTROL DEVICEDISK
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
140-00Interchangeable
interchangeable cross-reference
interchangeable
3046Interchangeable
interchangeable cross-reference
interchangeable
1413Interchangeable
interchangeable cross-reference
interchangeable
WF803TYPE2Interchangeable
interchangeable cross-reference
interchangeable
6005Interchangeable
interchangeable cross-reference
interchangeable
862523Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55H19?
55H19 is a FUSE LINK,ELECTRICAL.
What parts can replace 55H19?
There are 23 known substitutes for 55H19: 140-00, 3046, 1413 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 55H19?
55H19 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-287-2189. This indicates validated use in U.S. government and defense supply chains.
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