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Technical Data Sheet
PartsTable / COMPONENT / 12-D-R PL-4226,PL-4551 6IN
12-D-R PL-4226,PL-4551 6IN ✓ 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 12-D-R PL-4226,PL-4551 6IN is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-198-4188, 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
12-D-R PL-4226,PL-4551 6IN
NSN: 4820-01-198-4188
FSC: 4820
CAGE: 99565 — ADMIRAL VALVE LLC DBA CPV MANUFACTURING (USA)
SPECIFICATIONS
Part Number12-D-R PL-4226,PL-4551 6IN
NSN4820-01-198-4188
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 12-D-R PL-4226,PL-4551 6IN · 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
•
FACE TO FACE DISTANCE: 5.500 INCHES IN
•
BOLT HOLE QUANTITY: 8 ALL ENDS
•
MOUNTING POSITION: HORIZONTAL OR VERTICAL
•
FLANGE SHAPE: ROUND WITH HOLES ALL ENDS
•
BOLT CIRCLE NOMINAL DIAMETER: 9.500 INCHES ALL ENDS IN
•
MOUNTING FACILITY: THREADED FASTENER
•
BOLT HOLE NOMINAL DIAMETER: 0.750 INCHES ALL ENDS IN
•
MAXIMUM OPERATING TEMP: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
TECHNICAL CHARACTERISTICS (FLIS)
FACE TO FACE DISTANCE5.500 INCHES IN
BOLT HOLE QUANTITY8 ALL ENDS
MOUNTING POSITIONHORIZONTAL OR VERTICAL
FLANGE SHAPEROUND WITH HOLES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER9.500 INCHES ALL ENDS IN
MOUNTING FACILITYTHREADED FASTENER
BOLT HOLE NOMINAL DIAMETER0.750 INCHES ALL ENDS IN
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE DEGF
FLANGE FACE DESIGNPLAIN ALL ENDS
VALVE OPERATION METHODAUTOMATIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
A-9886Interchangeable
interchangeable cross-reference
interchangeable
A-9886 PL4242/PL4373Interchangeable
interchangeable cross-reference
interchangeable
12D-2-1/2Interchangeable
interchangeable cross-reference
interchangeable
098052ALInterchangeable
interchangeable cross-reference
interchangeable
A-9886 3IN PIECE 2Interchangeable
interchangeable cross-reference
interchangeable
A9886 3IN PIECE 5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12-D-R PL-4226,PL-4551 6IN?
12-D-R PL-4226,PL-4551 6IN is a 12-D-R PL-4226,PL-4551 6IN.
What parts can replace 12-D-R PL-4226,PL-4551 6IN?
There are 22 known substitutes for 12-D-R PL-4226,PL-4551 6IN: A-9886, A-9886 PL4242/PL4373, 12D-2-1/2 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12-D-R PL-4226,PL-4551 6IN?
12-D-R PL-4226,PL-4551 6IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-198-4188. 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