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Technical Data Sheet
PartsTable / COMPONENT / VA-1889
VA-1889 ✓ 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 PARTS KIT,BALL VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, seat_radius: 0.188 INCHES NOMINAL IN, overall_height: 0.375 INCHES NOMINAL IN, style_designator: PLAIN, component_quantity: 10, body_inside_diameter: 6.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-048-3345, 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
VA-1889
NSN: 4820-01-048-3345
FSC: 4820
CAGE: 27424 — MORLAND VALVE CO INC SUB OF SMITH VALVE CORP (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
seat_radius0.188 INCHES NOMINAL IN
overall_height0.375 INCHES NOMINAL IN
style_designatorPLAIN
component_quantity10
body_inside_diameter6.000 INCHES NOMINAL IN
body_outside_diameter6.750 INCHES NOMINAL IN
seating_surface_shapeRADIAL
supply_items_and_quantitiesSEAT 4;T/P O-RING 4;STEM O-RING 1 BONNET O-RING 1
NSN4820-01-048-3345
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: VA-1889 · 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 INSIDE DIAMETER: 6.000 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 6.750 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
•
SEATING SURFACE SHAPE: RADIAL
•
STYLE DESIGNATOR: PLAIN
•
SEAT RADIUS: 0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY INSIDE DIAMETER6.000 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER6.750 INCHES NOMINAL IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
SEATING SURFACE SHAPERADIAL
STYLE DESIGNATORPLAIN
OVERALL HEIGHT0.375 INCHES NOMINAL IN
SEAT RADIUS0.188 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
VA-1889 PIECE 39Interchangeable
interchangeable cross-reference
interchangeable
VA-1889 PIECE 37Interchangeable
interchangeable cross-reference
interchangeable
B-6418Interchangeable
interchangeable cross-reference
interchangeable
VA-1889-10 TEFLONInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is VA-1889?
VA-1889 is a PARTS KIT,BALL VALVE.
What parts can replace VA-1889?
There are 4 known substitutes for VA-1889: VA-1889 PIECE 39, VA-1889 PIECE 37, B-6418 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for VA-1889?
VA-1889 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-048-3345. 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