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Technical Data Sheet
PartsTable / COMPONENT / 85304-45
85304-45 ✓ 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 special_features: INLET SECTION UNLOADING; 85PSI BIAS; PRESSURE ADJ SCREW, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, valve_operation_method: AUTOMATIC, end_item_identification: VALVE CONTROL ASSEMBLY, SERIES 16 MCV SYSTEM 4-WAY; 4820-01-346-8853, opening_pressure_setting: 2500.0 POUNDS PER SQUARE INCH LBS, part_name_assigned_by_controlling_agency: INLET SECTION, UNLOAD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-546-5394, 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
85304-45
NSN: 4820-01-546-5394
FSC: 4820
CAGE: 0PXH5 — RG INDUSTRIES, INC. DBA POWERTECH HYDRAULICS DIV POWERTECH HYDRAULICS (USA)
SPECIFICATIONS
special_featuresINLET SECTION UNLOADING; 85PSI BIAS; PRESSURE ADJ SCREW
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
valve_operation_methodAUTOMATIC
end_item_identificationVALVE CONTROL ASSEMBLY, SERIES 16 MCV SYSTEM 4-WAY; 4820-01-346-8853
opening_pressure_setting2500.0 POUNDS PER SQUARE INCH LBS
part_name_assigned_by_controlling_agencyINLET SECTION, UNLOAD
NSN4820-01-546-5394
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 85304-45 · 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
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
OPENING PRESSURE SETTING: 2500.0 POUNDS PER SQUARE INCH LBS
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONVALVE CONTROL ASSEMBLY, SERIES 16 MCV SYSTEM 4-WAY; 4820-01-346-8853
SPECIAL FEATURESINLET SECTION UNLOADING; 85PSI BIAS; PRESSURE ADJ SCREW
PART NAME ASSIGNED BY CONTROLLING AGENCYINLET SECTION, UNLOAD
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
OPENING PRESSURE SETTING2500.0 POUNDS PER SQUARE INCH LBS
VALVE OPERATION METHODAUTOMATIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
62017-64Interchangeable
interchangeable cross-reference
interchangeable
5827-01 ITEM 4Interchangeable
interchangeable cross-reference
interchangeable
MHV16S-LFHC4-HInterchangeable
interchangeable cross-reference
interchangeable
85360-44Interchangeable
interchangeable cross-reference
interchangeable
85327-45Interchangeable
interchangeable cross-reference
interchangeable
AP16SInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 85304-45?
85304-45 is a VALVE,SAFETY RELIEF.
What parts can replace 85304-45?
There are 9 known substitutes for 85304-45: 62017-64, 5827-01 ITEM 4, MHV16S-LFHC4-H and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 85304-45?
85304-45 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-546-5394. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026