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PartsTable / COMPONENT / 1859-5 ITEM 4
1859-5 ITEM 4 ✓ 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 DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, taper_length: 4.000 INCHES NOMINAL IN, overall_height: 5.2187 INCHES NOMINAL IN, pressure_rating: 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS, style_designator: SOLID WEDGE, taper_major_diameter: 0.2243 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 4820-01-194-7006, 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
1859-5 ITEM 4
NSN: 4820-01-194-7006
FSC: 4820
CAGE: 85130 — FLOWSERVE CORPORATION DIV FLOWSERVE US INC (USA)
SPECIFICATIONS
materialSTEEL
taper_length4.000 INCHES NOMINAL IN
overall_height5.2187 INCHES NOMINAL IN
pressure_rating600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
style_designatorSOLID WEDGE
taper_major_diameter0.2243 INCHES NOMINAL IN
taper_minor_diameter0.1563 INCHES NOMINAL IN
NSN4820-01-194-7006
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1859-5 ITEM 4 · 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
•
TAPER MAJOR DIAMETER: 0.2243 INCHES NOMINAL IN
•
PRESSURE RATING: 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
MATERIAL: STEEL
•
TAPER LENGTH: 4.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SOLID WEDGE
•
TAPER MINOR DIAMETER: 0.1563 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
TAPER MAJOR DIAMETER0.2243 INCHES NOMINAL IN
PRESSURE RATING600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
MATERIALSTEEL
TAPER LENGTH4.000 INCHES NOMINAL IN
OVERALL HEIGHT5.2187 INCHES NOMINAL IN
STYLE DESIGNATORSOLID WEDGE
TAPER MINOR DIAMETER0.1563 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
M81757/10-1Interchangeable
interchangeable cross-reference
interchangeable
MIL-B-81757/10Interchangeable
interchangeable cross-reference
interchangeable
27735-03CInterchangeable
interchangeable cross-reference
interchangeable
1859-5 ITEM 5Interchangeable
interchangeable cross-reference
interchangeable
1859-5Interchangeable
interchangeable cross-reference
interchangeable
1859-5PC5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1859-5 ITEM 4?
1859-5 ITEM 4 is a DISK,VALVE.
What parts can replace 1859-5 ITEM 4?
There are 10 known substitutes for 1859-5 ITEM 4: M81757/10-1, MIL-B-81757/10, 27735-03C and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1859-5 ITEM 4?
1859-5 ITEM 4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-194-7006. 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