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Technical Data Sheet
PartsTable / COMPONENT / CV9-S4501-026-8
CV9-S4501-026-8 ✓ 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: COPPER ALLOY, seat_angle: 45.0 DEGREES NOMINAL, thread_class: 2B, overall_height: 1.480 INCHES NOMINAL IN, pressure_rating: 250.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS, outside_diameter: 1.750 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 4820-01-251-5322, 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
CV9-S4501-026-8
NSN: 4820-01-251-5322
FSC: 4820
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY
seat_angle45.0 DEGREES NOMINAL
thread_class2B
overall_height1.480 INCHES NOMINAL IN
pressure_rating250.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
outside_diameter1.750 INCHES NOMINAL IN
style_designatorPLUG
nominal_thread_size0.840 INCHES IN
media_for_which_designedOIL
thread_quantity_per_inch22
thread_series_designatorUNS
NSN4820-01-251-5322
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: CV9-S4501-026-8 · 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
•
THREAD CLASS: 2B
•
PRESSURE RATING: 250.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
•
NOMINAL THREAD SIZE: 0.840 INCHES IN
•
MATERIAL: COPPER ALLOY
•
THREAD SERIES DESIGNATOR: UNS
•
OUTSIDE DIAMETER: 1.750 INCHES NOMINAL IN
•
SEAT ANGLE: 45.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
PRESSURE RATING250.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
NOMINAL THREAD SIZE0.840 INCHES IN
OVERALL HEIGHT1.480 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
THREAD SERIES DESIGNATORUNS
OUTSIDE DIAMETER1.750 INCHES NOMINAL IN
SEAT ANGLE45.0 DEGREES NOMINAL
MEDIA FOR WHICH DESIGNEDOIL
STYLE DESIGNATORPLUG
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
CV9-S4501-026-20Interchangeable
interchangeable cross-reference
interchangeable
CV9-S4501-026Interchangeable
interchangeable cross-reference
interchangeable
19871-18Interchangeable
interchangeable cross-reference
interchangeable
CV9-S4501-026-18Interchangeable
interchangeable cross-reference
interchangeable
19871 PIECE 18Interchangeable
interchangeable cross-reference
interchangeable
C-3650Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CV9-S4501-026-8?
CV9-S4501-026-8 is a DISK,VALVE.
What parts can replace CV9-S4501-026-8?
There are 8 known substitutes for CV9-S4501-026-8: CV9-S4501-026-20, CV9-S4501-026, 19871-18 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CV9-S4501-026-8?
CV9-S4501-026-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-251-5322. 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