PartsTable
Technical Data Sheet
12-D-R 6IN A-9886 PL-4551 ✓ 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 VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT, valve_size: 6.000 INCHES IN, flange_shape: ROUND WITH HOLES ALL ENDS, connection_type: FLANGE ALL ENDS, style_designator: STRAIGHT THRU FLANGED ENDS, mounting_facility: THREADED FASTENER. 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 6IN A-9886 PL-4551
NSN: 4820-01-198-4188
FSC: 4820
CAGE: 99565 — ADMIRAL VALVE LLC DBA CPV MANUFACTURING (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
valve_size6.000 INCHES IN
flange_shapeROUND WITH HOLES ALL ENDS
connection_typeFLANGE ALL ENDS
style_designatorSTRAIGHT THRU FLANGED ENDS
mounting_facilityTHREADED FASTENER
mounting_positionHORIZONTAL OR VERTICAL
nominal_thickness1.000 INCHES ALL ENDS IN
bolt_hole_quantity8 ALL ENDS
flange_face_designPLAIN ALL ENDS
flow_control_deviceDISK
face_to_face_distance5.500 INCHES IN
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 6IN A-9886 PL-4551 · 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 21
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 6IN A-9886 PL-4551?
12-D-R 6IN A-9886 PL-4551 is a VALVE,CHECK.
What parts can replace 12-D-R 6IN A-9886 PL-4551?
There are 21 known substitutes for 12-D-R 6IN A-9886 PL-4551: A-9886, A-9886 PL4242/PL4373, 12D-2-1/2 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12-D-R 6IN A-9886 PL-4551?
12-D-R 6IN A-9886 PL-4551 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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