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Technical Data Sheet
PartsTable / COMPONENT / C-4261
C-4261 ✓ 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 CARTRIDGE,SHUT-OFF VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, valve_size: 1.000 INCHES IN, hole_diameter: 0.323 INCHES MINIMUM AND 0.328 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 4.199 INCHES NOMINAL IN, port_diameter: 1.188 INCHES NOMINAL IN, special_features: STANDARD MODEL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-010-5602, 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
C-4261
NSN: 4820-00-010-5602
FSC: 4820
CAGE: 99565 — ADMIRAL VALVE LLC DBA CPV MANUFACTURING (USA)
SPECIFICATIONS
materialCOPPER ALLOY
valve_size1.000 INCHES IN
hole_diameter0.323 INCHES MINIMUM AND 0.328 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
overall_width4.199 INCHES NOMINAL IN
port_diameter1.188 INCHES NOMINAL IN
special_featuresSTANDARD MODEL
style_designatorSTRAIGHT THRU
aperture_diameter2.500 INCHES NOMINAL IN
features_providedHIGH TEMPERATURE
surface_treatmentANODIZE OVERALL
bolt_hole_quantity4
operating_pressure6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
NSN4820-00-010-5602
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: C-4261 · 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
•
OPERATING PRESSURE: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
PORT DIAMETER: 0.313 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1 1/8-12 UNF
•
MAXIMUM OPERATING TEMP: 225.0 FAHRENHEIT DEGF
•
VALVE SIZE: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
OPERATING PRESSURE6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
PORT DIAMETER0.313 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
THREAD SIZE AND SERIES/TYPE DESIGNATOR1 1/8-12 UNF
MAXIMUM OPERATING TEMP225.0 FAHRENHEIT DEGF
VALVE SIZE0.250 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
810-1385870PC15Interchangeable
interchangeable cross-reference
interchangeable
810-1385870Interchangeable
interchangeable cross-reference
interchangeable
3-65-1Interchangeable
interchangeable cross-reference
interchangeable
23539Interchangeable
interchangeable cross-reference
interchangeable
SC0TCHCAL3651Interchangeable
interchangeable cross-reference
interchangeable
DR-3036-5105-0Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C-4261?
C-4261 is a CARTRIDGE,SHUT-OFF VALVE.
What parts can replace C-4261?
There are 26 known substitutes for C-4261: 810-1385870PC15, 810-1385870, 3-65-1 and 23 more. Substitute compatibility should be verified for your specific system.
Is C-4261 still available?
C-4261 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026