PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

85304-45Valve,safety Relief

Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division · NSN 4820-01-546-5394 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-546-5394 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-546-5394. Primary manufacturer part number: 85304-45.
Features
  • Valve,safety Relief — FSC 4820
  • 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
  • 5 verified cross-references
  • Primary manufacturer: Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-546-5394, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-546-5394
Primary Part Number85304-45
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
StatusACTIVE
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Opening Pressure Setting2500.0 POUNDS PER SQUARE INCH LBS
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4820-01-346-885362017-64 INTERCHANGEABLE
Valve Assembly
Rg Industries, Inc. Dba Powertech Hydraulics Div Powertech Hydraulics
4820-01-546-537985360-44 INTERCHANGEABLE
Valve,linear,directional Control
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
4820-01-546-538585327-45 INTERCHANGEABLE
Valve,linear,directional Control
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
4820-01-546-539975121-41 INTERCHANGEABLE
Valve,check
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
4820-01-546-620575136-43 INTERCHANGEABLE
Parts Kit,valve
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
Cross-Reference Index
Part NumberManufacturer
MUV16S-L6S Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
85304-45 Rg Industries, Inc. Dba Powertech Hydraulics Div Powertech Hydraulics (USA)
85304-45 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA)
MUV16S-L6S Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA)
62017-64 Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA)
Related Parts
4820-01-346-8853INTERCHANGEABLE
VALVE ASSEMBLY
62017-64
4820-01-546-5379INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
85360-44
4820-01-546-5385INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
85327-45
4820-01-546-5399INTERCHANGEABLE
VALVE,CHECK
75121-41
4820-01-546-6205INTERCHANGEABLE
PARTS KIT,VALVE
75136-43

Frequently Asked Questions

What is NSN 4820-01-546-5394?

NSN 4820-01-546-5394 is a Valve,safety Relief, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-546-5394?

NSN 4820-01-546-5394 has 5 cross-referenced part numbers: MUV16S-L6S (Ingersoll-Rand Company Dba Ingersoll-Rand), 85304-45 (Rg Industries, Inc. Dba Powertech Hydraulics Div Powertech Hydraulics), 85304-45 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division), MUV16S-L6S (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division), 62017-64 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division).

What NSN replaces 4820-01-546-5394?

There are 5 known substitutes for 4820-01-546-5394: 4820-01-346-8853, 4820-01-546-5379, 4820-01-546-5385 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 85304-45?

Key specifications for 85304-45: End Item Identification: VALVE CONTROL ASSEMBLY, SERIES 16 MCV SYSTEM 4-WAY; 4820-01-346-8853; Special Features: INLET SECTION UNLOADING; 85PSI BIAS; PRESSURE ADJ SCREW; Part Name Assigned by Controlling Agency: INLET SECTION, UNLOAD; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 6 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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