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2643-785-20 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

2643-785-20: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 BODY, connection_type: THREADED EXTERNAL PIPE FIRST END, operating_pressure: 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, valve_operation_method: AUTOMATIC, end_item_identification: SEAWOLF CLASS SSN, media_for_which_designed: HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-502-2561, 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
2643-785-20
NSN: 4820-01-502-2561
NIINs: 015022561, 015022573
FSC: 4820 — Valves, Nonpowered
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialSTEEL COMP 304 BODY
connection_typeTHREADED EXTERNAL PIPE FIRST END
operating_pressure5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
valve_operation_methodAUTOMATIC
end_item_identificationSEAWOLF CLASS SSN
media_for_which_designedHYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE
adjustable_pressure_range+100.0 TO 300.0 POUNDS PER SQUARE INCH LBS
valve_discharge_flow_rate100.0 GALLONS PER MINUTE
NSN4820-01-502-2561
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2643-785-20 · 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
•
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST END
•
STYLE DESIGNATOR: SCREW-IN CARTRIDGE
•
OPERATING PRESSURE: 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
ADJUSTABLE PRESSURE RANGE: +100.0 TO 300.0 POUNDS PER SQUARE INCH LBS
•
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE
•
MATERIAL: STEEL COMP 304 BODY
TECHNICAL CHARACTERISTICS
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
STYLE DESIGNATORSCREW-IN CARTRIDGE
OPERATING PRESSURE5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
ADJUSTABLE PRESSURE RANGE+100.0 TO 300.0 POUNDS PER SQUARE INCH LBS
SPECIAL FEATURESASSEMBLY INCLUDES SUN HYDRAULICS CORP. MODEL RPIE-LAV RELIEF VALVE CARTRIDGE
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
MATERIALSTEEL COMP 304 BODY
VALVE OPERATION METHODAUTOMATIC
SUBSTITUTES & CROSS-REFERENCES 2
7410555Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
801-7410555 ASSY ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2643-785-20?
2643-785-20 is a VALVE,SAFETY RELIEF.
What parts can replace 2643-785-20?
There are 2 known substitutes for 2643-785-20: 7410555, 801-7410555 ASSY A. Substitute compatibility should be verified for your specific system.
What is the NSN for 2643-785-20?
2643-785-20 is cataloged in the U.S. Government catalog under NSN 4820-01-502-2561. This indicates validated use in U.S. government and defense supply chains.
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