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378802 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

378802: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY STEM, flange_shape: ROUND WITH HOLES FIRST END, connection_type: FLANGE FIRST END, connection_style: SOCKET WITH BRAZING RING THIRD END, style_designator: CROSS, nominal_thickness: 1.000 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-311-4265, 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
378802
NSN: 4820-01-311-4265
FSC: 4820 — Valves, Nonpowered
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY STEM
flange_shapeROUND WITH HOLES FIRST END
connection_typeFLANGE FIRST END
connection_styleSOCKET WITH BRAZING RING THIRD END
style_designatorCROSS
nominal_thickness1.000 INCHES FIRST END IN
bolt_hole_quantity6 FIRST END
flange_face_designPLAIN FIRST END
valve_operation_methodMANUAL
media_for_which_designedWATER-OIL-GAS SINGLE RESPONSE
nominal_outside_diameter5.219 INCHES FIRST END IN
bolt_hole_nominal_diameter0.688 INCHES FIRST END IN
NSN4820-01-311-4265
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 378802 · 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
SUBSTITUTES & CROSS-REFERENCES 2
5798-20-004Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
5798-20-004 ITEM 4Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 378802?
378802 is a SEAT,VALVE.
What parts can replace 378802?
There are 2 known substitutes for 378802: 5798-20-004, 5798-20-004 ITEM 4. Substitute compatibility should be verified for your specific system.
What is the NSN for 378802?
378802 is cataloged in the U.S. Government catalog under NSN 4820-01-311-4265. This indicates validated use in U.S. government and defense supply chains.
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