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D019 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

D019: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_height: 0.375 INCHES NOMINAL IN, special_features: DOUBLE HEX ADJUSTABLE TYPE, style_designator: PLAIN, thread_direction: RIGHT-HAND, width_across_flats: 1.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-852-5380, 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
D019
NSN: 4820-00-852-5380
NIINs: 008525380, 010284305, 016045279
FSC: 4820 — Valves, Nonpowered
CAGE: 78330 — SLOAN VALVE COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_height0.375 INCHES NOMINAL IN
special_featuresDOUBLE HEX ADJUSTABLE TYPE
style_designatorPLAIN
thread_directionRIGHT-HAND
width_across_flats1.000 INCHES NOMINAL IN
body_inside_diameter1.062 INCHES NOMINAL IN
body_outside_diameter1.375 INCHES NOMINAL IN
seating_surface_shapeRADIAL
end_item_identificationCOMPONENT TO FRS TOOL KIT 5180-01-584-8643
thread_size_and_series/type_designator0.500-20 UNF
NSN4820-00-852-5380
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D019 · 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: 1.375 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN
•
BODY INSIDE DIAMETER: 1.062 INCHES NOMINAL IN
•
MATERIAL: PLASTIC ACETAL OVERALL
•
SEATING SURFACE SHAPE: RADIAL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.375 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.375 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
BODY INSIDE DIAMETER1.062 INCHES NOMINAL IN
MATERIALPLASTIC ACETAL OVERALL
SEATING SURFACE SHAPERADIAL
SUBSTITUTES & CROSS-REFERENCES 1
A17368Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D019?
D019 is a SEAT,VALVE.
What parts can replace D019?
There is 1 known substitute for D019: A17368. Substitute compatibility should be verified for your specific system.
What is the NSN for D019?
D019 is cataloged in the U.S. Government catalog under NSN 4820-00-852-5380. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.