Product Details | SAFETY RELIEF VALVE

4820-01-398-4552 A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.

Part Alternates: S4CPA2350, S-4CPA2-350, SS4CPA2350, SS-4CPA2-350 , 2022AS300, 2022AS3001, 2022AS300-1, 4820-01-398-4552, 01-398-4552, 4820013984552, 013984552

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 03 NOV 1994 01-398-4552

Drawings & Photos | NSN 4820-01-398-4552


Demand History | NSN 4820-01-398-4552

Part Number Request Date QTY Origin
SS-4CPA2-350 2019-01-16 1 DIBBS
4820-01-398-4552 2018-06-21 1 DIBBS
4820-01-398-4552 2017-02-05 1 DIBBS
4820-01-398-4552 2014-06-08 1 DIBBS
4820-01-398-4552 2014-04-15 1 DIBBS
4820-01-398-4552 2013-10-31 1 DIBBS

Cross Reference | NSN 4820-01-398-4552

Part Number Cage Code Manufacturer
2022AS300 30003 NAVAL AIR SYSTEMS COMMAND
2022AS300-1 30003 NAVAL AIR SYSTEMS COMMAND
S-4CPA2-350 02570 SWAGELOK COMPANY DBA USE CAGE CODE 3T9T9 FOR
S-4CPA2-350 18034 NUPRO CO

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Technical Data | NSN 4820-01-398-4552

Characteristic Specifications
MATERIAL STEEL COMP 316 BODY STEEL COMP 316 FLOW CONTROL DEVICE RUBBER SYNTHETIC PACKING COPPER ALLOY SEAT
STYLE DESIGNATOR B6 STRAIGHT THRU
FLOW CONTROL DEVICE POPPET
MEDIA FOR WHICH DESIGNED OIL, HYDRAULIC SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 250.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL PIPE ALL ENDS
CONNECTION STYLE G46B PLAIN ALL ENDS
THREAD SERIES DESIGNATOR NPT ALL ENDS
NOMINAL THREAD SIZE 0.250 INCHES ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
OPENING PRESSURE SETTING 600.0 POUNDS PER SQUARE INCH
SPECIAL FEATURES ADJUSTABLE 350-600 PSI RANGE SET TO 600 PSI BEFORE USE
III END ITEM IDENTIFICATION AHU-24/E DISABLED AIRCRAFT WHEEL DOLLY, GROUND SUPPORT EQUIPMENT FOR THE F/A-18 HORNET AIRCRAFT

Restrictions/Controls & Freight Information | NSN 4820-01-398-4552

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 127220 PRESSURE REG/RED/RELIEF VALVES NOI
Less than car load rating
Less than truck load rating P 77.5
Water commodity Code 594 unknown
Originating Activity Code AX Defense Supply Center Columbus
Columbus, OH 43216-5000
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 4820-01-398-4552

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each