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77651-90X1 — VALVE,FLOW CONTROL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

77651-90X1: VALVE,FLOW CONTROL.

The VALVE,FLOW CONTROL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, design_type: ANGLE, connection_type: FLANGE, ROUND W/HOLES, flange_diameter: 11.875 INCHES AND 10.875 INCHES IN, special_features: BODY,COPPER NICKEL PER MIL-C-20159B TYPE 1;BALL,COPPER NICKEL PER QQ-N-288;STEM ALUM. BRONZE;3 POSITION ANGLE TEE BALL, valve_operation_method: HYDRAULIC.

This part is cataloged in the U.S. Government catalog under NSN 4820-00-045-5523, 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
77651-90X1
NSN: 4820-00-045-5523
NIINs: 000455523, 011925975, 011925976
FSC: 4820 — Valves, Nonpowered
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialCOPPER ALLOY
design_typeANGLE
connection_typeFLANGE, ROUND W/HOLES
flange_diameter11.875 INCHES AND 10.875 INCHES IN
special_featuresBODY,COPPER NICKEL PER MIL-C-20159B TYPE 1;BALL,COPPER NICKEL PER QQ-N-288;STEM ALUM. BRONZE;3 POSITION ANGLE TEE BALL
valve_operation_methodHYDRAULIC
end_connection_quantity3
end_item_identificationSSN CLASS VALVE, 6 IN. X 4 IN. X 6 IN.; 3 PORT, 3 POS(ANGLE TEE BALL) IN
NSN4820-00-045-5523
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 77651-90X1 · 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
•
NOMINAL PIPE SIZE ACCOMMODATED: 3.000 INCHES FIRST END IN
•
CONNECTION STYLE: SOCKET WITH BRAZING RING FIRST END
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
STYLE DESIGNATOR: STRAIGHT THRU
•
OPERATING PRESSURE: 650.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
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MATERIAL: NICKEL ALLOY FLOW CONTROL DEVICE
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED3.000 INCHES FIRST END IN
CONNECTION STYLESOCKET WITH BRAZING RING FIRST END
CRITICALITY CODE JUSTIFICATIONZZZY
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE650.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIALCOPPER ALLOY 903 BODY
VALVE OPERATION METHODMANUAL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
SUBSTITUTES & CROSS-REFERENCES 3
77651-90X1L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2144478Reference document
Same NSN cross-reference
Reference document — Secondary reference
2144478L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 77651-90X1?
77651-90X1 is a VALVE,FLOW CONTROL.
What parts can replace 77651-90X1?
There are 3 known substitutes for 77651-90X1: 77651-90X1L1, 2144478, 2144478L1. Substitute compatibility should be verified for your specific system.
What is the NSN for 77651-90X1?
77651-90X1 is cataloged in the U.S. Government catalog under NSN 4820-00-045-5523. This indicates validated use in U.S. government and defense supply chains.
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