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Technical Data Sheet
PartsTable / COMPONENT / 804-19-5
804-19-5 ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, style_designator: PLAIN FLANGED, under_flange_height: 0.093 INCHES NOMINAL IN, body_inside_diameter: 0.080 INCHES NOMINAL IN, body_outside_diameter: 0.457 INCHES MINIMUM AND 0.459 INCHES MAXIMUM IN, seating_surface_shape: FLAT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-187-6939, 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
804-19-5
NSN: 4820-01-187-6939
FSC: 4820
CAGE: 13859 — KING NUTRONICS CORPORATION DBA KING NUTRONICS (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
style_designatorPLAIN FLANGED
under_flange_height0.093 INCHES NOMINAL IN
body_inside_diameter0.080 INCHES NOMINAL IN
body_outside_diameter0.457 INCHES MINIMUM AND 0.459 INCHES MAXIMUM IN
seating_surface_shapeFLAT
flange_seat_to_disk_end_height0.100 INCHES NOMINAL IN
NSN4820-01-187-6939
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 804-19-5 · 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
•
BODY OUTSIDE DIAMETER: 0.457 INCHES MINIMUM AND 0.459 INCHES MAXIMUM IN
•
SEATING SURFACE SHAPE: FLAT
•
FLANGE SEAT TO DISK END HEIGHT: 0.100 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.080 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.093 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
MATERIAL: STEEL COMP 303 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER0.457 INCHES MINIMUM AND 0.459 INCHES MAXIMUM IN
SEATING SURFACE SHAPEFLAT
FLANGE SEAT TO DISK END HEIGHT0.100 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.080 INCHES NOMINAL IN
UNDER FLANGE HEIGHT0.093 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN FLANGED
MATERIALSTEEL COMP 303 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
80419Interchangeable
interchangeable cross-reference
interchangeable
10554038-19Interchangeable
interchangeable cross-reference
interchangeable
2994341Interchangeable
interchangeable cross-reference
interchangeable
2534903EXInterchangeable
interchangeable cross-reference
interchangeable
804-19-1Interchangeable
interchangeable cross-reference
interchangeable
804-19-7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 804-19-5?
804-19-5 is a SEAT,VALVE.
What parts can replace 804-19-5?
There are 12 known substitutes for 804-19-5: 80419, 10554038-19, 2994341 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 804-19-5?
804-19-5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-187-6939. 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