PartsTable
Technical Data Sheet
R663 3-8D2-0-7 ✓ 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,RESTRICTOR CHECK is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, connection_type: THREADED INTERNAL PIPE FIRST END, connection_style: PLAIN, OPTIONAL END (PIPE) ALL ENDS, special_features: 0.07 GPM FLOW RATE, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-671-6438, 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
R663 3-8D2-0-7
NSN: 4820-00-671-6438
FSC: 4820
CAGE: 86768 — TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC BUSINESS UNIT (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
connection_typeTHREADED INTERNAL PIPE FIRST END
connection_stylePLAIN, OPTIONAL END (PIPE) ALL ENDS
special_features0.07 GPM FLOW RATE
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDS
mounting_positionHORIZONTAL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_devicePISTON
nominal_thread_size0.375 INCHES ALL ENDS IN
valve_operation_methodAUTOMATIC
NSN4820-00-671-6438
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: R663 3-8D2-0-7 · 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
FLOW CONTROL DEVICE: PISTON
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST END
THREAD DIRECTION: RIGHT-HAND ALL ENDS
MATERIAL: ALUMINUM ALLOY FLOW CONTROL DEVICE
MEDIA FOR WHICH DESIGNED: OIL, HYDRAULIC SINGLE RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
FLOW CONTROL DEVICEPISTON
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
THREAD DIRECTIONRIGHT-HAND ALL ENDS
MATERIALALUMINUM ALLOY FLOW CONTROL DEVICE
END ITEM IDENTIFICATIONGRUMMAN A10 AIRCRAFT
MEDIA FOR WHICH DESIGNEDOIL, HYDRAULIC SINGLE RESPONSE
MATERIALALUMINUM ALLOY BODY
SPECIAL FEATURES0.07 GPM FLOW RATE
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
138C645H01Interchangeable
interchangeable cross-reference
interchangeable
4SL/34549 ITEM 4Interchangeable
interchangeable cross-reference
interchangeable
1903-07Interchangeable
interchangeable cross-reference
interchangeable
PCCK600S.70X7036Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R663 3-8D2-0-7?
R663 3-8D2-0-7 is a VALVE,RESTRICTOR CHECK.
What parts can replace R663 3-8D2-0-7?
There are 4 known substitutes for R663 3-8D2-0-7: 138C645H01, 4SL/34549 ITEM 4, 1903-07 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R663 3-8D2-0-7?
R663 3-8D2-0-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-671-6438. This indicates validated use in U.S. government and defense supply chains.
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