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V20393 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

V20393: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include connection_type: THREADED INTERNAL PIPE ALL ENDS, special_features: FLOW MEDIUM: REFRIGERANT, thread_direction: RIGHT-HAND ALL ENDS, disk_loading_method: SPRING, nominal_thread_size: 1.000 INCHES ALL ENDS IN, valve_operation_method: AUTOMATIC. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-570-9839, 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
V20393
NSN: 4820-01-570-9839
FSC: 4820 — Valves, Nonpowered
CAGE: 6R591 — MANCHESTER TANK AND EQUIPMENT CO (USA)
SPECIFICATIONS
connection_typeTHREADED INTERNAL PIPE ALL ENDS
special_featuresFLOW MEDIUM: REFRIGERANT
thread_directionRIGHT-HAND ALL ENDS
disk_loading_methodSPRING
nominal_thread_size1.000 INCHES ALL ENDS IN
valve_operation_methodAUTOMATIC
end_item_identificationP/N 14398.3 1000 LB RECOVERY CYLINDER, DOT4BW260 LBS
thread_series_designatorNPT ALL ENDS
adjustable_pressure_range+420.0 TO 450.0 POUNDS PER SQUARE INCH LBS
part_name_assigned_by_controlling_agencyVALVE 1 INCH NPT RELIEF IN
NSN4820-01-570-9839
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: V20393 · 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 INTERNAL PIPE ALL ENDS
•
ADJUSTABLE PRESSURE RANGE: +420.0 TO 450.0 POUNDS PER SQUARE INCH LBS
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
NOMINAL THREAD SIZE: 1.000 INCHES ALL ENDS IN
•
DISK LOADING METHOD: SPRING
TECHNICAL CHARACTERISTICS
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
ADJUSTABLE PRESSURE RANGE+420.0 TO 450.0 POUNDS PER SQUARE INCH LBS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE1.000 INCHES ALL ENDS IN
DISK LOADING METHODSPRING
SPECIAL FEATURESFLOW MEDIUM: REFRIGERANT
PART NAME ASSIGNED BY CONTROLLING AGENCYVALVE 1 INCH NPT RELIEF IN
END ITEM IDENTIFICATIONP/N 14398.3 1000 LB RECOVERY CYLINDER, DOT4BW260 LBS
THREAD SERIES DESIGNATORNPT ALL ENDS
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is V20393?
V20393 is a VALVE,SAFETY RELIEF.
What is the NSN for V20393?
V20393 is cataloged in the U.S. Government catalog under NSN 4820-01-570-9839. This indicates validated use in U.S. government and defense supply chains.
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