PartsTable
Technical Data Sheet
8771816-1 ✓ 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,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, connection_type: THREADED EXTERNAL PIPE FIRST END, connection_style: PLAIN (PIPE) FIRST END, special_features: LIQUID OXYGEN CLEANED AND PACKAGED, style_designator: ANGLE, thread_direction: RIGHT-HAND FIRST END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-286-2325, 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
8771816-1
NSN: 4820-01-286-2325
FSC: 4820
CAGE: 98750 — SAN ANTONIO AIR LOGISTICS CENTER (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
connection_typeTHREADED EXTERNAL PIPE FIRST END
connection_stylePLAIN (PIPE) FIRST END
special_featuresLIQUID OXYGEN CLEANED AND PACKAGED
style_designatorANGLE
thread_directionRIGHT-HAND FIRST END
disk_loading_methodSPRING
flow_control_deviceBALL
nominal_thread_size0.250 INCHES FIRST END IN
supplementary_featuresAPPL TO INLET MANIFOLD ASSEMBLY
valve_operation_methodAUTOMATIC
thread_series_designatorNPT FIRST END
NSN4820-01-286-2325
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 8771816-1 · 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
SUPPLEMENTARY FEATURES: APPL TO INLET MANIFOLD ASSEMBLY
DISK LOADING METHOD: SPRING
THREAD DIRECTION: RIGHT-HAND FIRST END
MATERIAL: COPPER ALLOY BODY
NOMINAL THREAD SIZE: 0.250 INCHES FIRST END IN
FLOW CONTROL DEVICE: BALL
THREAD SERIES DESIGNATOR: NPT FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
SUPPLEMENTARY FEATURESAPPL TO INLET MANIFOLD ASSEMBLY
DISK LOADING METHODSPRING
THREAD DIRECTIONRIGHT-HAND FIRST END
MATERIALCOPPER ALLOY BODY
SPECIAL FEATURESLIQUID OXYGEN CLEANED AND PACKAGED
NOMINAL THREAD SIZE0.250 INCHES FIRST END IN
FLOW CONTROL DEVICEBALL
THREAD SERIES DESIGNATORNPT FIRST END
VALVE OPERATION METHODAUTOMATIC
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
4610PL0776828Interchangeable
interchangeable cross-reference
interchangeable
PCL-1011Interchangeable
interchangeable cross-reference
interchangeable
VP-17-4010Interchangeable
interchangeable cross-reference
interchangeable
3274375Interchangeable
interchangeable cross-reference
interchangeable
11989AInterchangeable
interchangeable cross-reference
interchangeable
72-6970-510Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8771816-1?
8771816-1 is a VALVE,SAFETY RELIEF.
What parts can replace 8771816-1?
There are 13 known substitutes for 8771816-1: 4610PL0776828, PCL-1011, VP-17-4010 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8771816-1?
8771816-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-286-2325. This indicates validated use in U.S. government and defense supply chains.
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