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VA303-1 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

VA303-1: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, bonnet_type: INSIDE SPRING, thread_direction: RIGHT-HAND FIRST END, nominal_thread_size: 0.50 INCHES FIRST END IN, maximum_operating_temp: 250.00 FAHRENHEIT SINGLE RESPONSE DEGF, valve_operation_method: AUTOMATIC. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-646-7870, 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
VA303-1
NSN: 4820-01-646-7870
FSC: 4820 — Valves, Nonpowered
CAGE: Z4J92 — MEDIQUIP PTY LTD (AUS)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
bonnet_typeINSIDE SPRING
thread_directionRIGHT-HAND FIRST END
nominal_thread_size0.50 INCHES FIRST END IN
maximum_operating_temp250.00 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
bonnet_attachment_methodINTEGRAL
thread_series_designatorNPT FIRST END
adjustable_pressure_range+50.0 TO 250.0 POUNDS PER SQUARE INCH LBS
NSN4820-01-646-7870
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: VA303-1 · 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
•
STYLE DESIGNATOR: SCREW-IN CARTRIDGE
•
ADJUSTABLE PRESSURE RANGE: +50.0 TO 250.0 POUNDS PER SQUARE INCH LBS
•
BONNET TYPE: INSIDE SPRING
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
NOMINAL THREAD SIZE: 0.50 INCHES FIRST END IN
•
MAXIMUM OPERATING TEMP: 250.00 FAHRENHEIT SINGLE RESPONSE DEGF
•
BONNET ATTACHMENT METHOD: INTEGRAL
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSCREW-IN CARTRIDGE
ADJUSTABLE PRESSURE RANGE+50.0 TO 250.0 POUNDS PER SQUARE INCH LBS
BONNET TYPEINSIDE SPRING
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL THREAD SIZE0.50 INCHES FIRST END IN
MAXIMUM OPERATING TEMP250.00 FAHRENHEIT SINGLE RESPONSE DEGF
BONNET ATTACHMENT METHODINTEGRAL
MATERIALCOPPER ALLOY OVERALL
THREAD SERIES DESIGNATORNPT FIRST END
VALVE OPERATION METHODAUTOMATIC
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is VA303-1?
VA303-1 is a VALVE,SAFETY RELIEF.
What is the NSN for VA303-1?
VA303-1 is cataloged in the U.S. Government catalog under NSN 4820-01-646-7870. This indicates validated use in U.S. government and defense supply chains.
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