Product Details | SAFETY RELIEF VALVE

4820-01-188-1779 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: 6532C4141, 6532C414-1, 665134D2, 665-13-4D2, 4820-01-188-1779, 01-188-1779, 4820011881779, 011881779

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 31 AUG 1984 01-188-1779

Drawings & Photos | NSN 4820-01-188-1779


Demand History | NSN 4820-01-188-1779

Part Number Request Date QTY Origin
6532C414-1 2023-04-109 132 DIBBS
6532C414-1 2023-03-85 3 DIBBS
6532C414-1 2022-01-31 25 DIBBS
6532C414-1 2020-12-341 25 DIBBS
665-13-4D2 2020-12-341 25 DIBBS
6532C414-1 2020-09-268 2 DIBBS
665-13-4D2 2020-09-268 2 DIBBS
6532C414-1 2020-07-203 3 DIBBS
665-13-4D2 2020-07-203 3 DIBBS
6532C414-1 2020-05-135 22 DIBBS
665-13-4D2 2020-05-135 22 DIBBS
665-13-4D2 2019-12-346 22 DIBBS
4820-01-188-1779 2015-10-302 17 DIBBS
4820-01-188-1779 2014-03-86 17 DIBBS

Cross Reference | NSN 4820-01-188-1779

Part Number Cage Code Manufacturer
6532C414-1 36334 INDAL TECHNOLOGIES INC
6532C414-1 80020 NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2
665-13-4D2 09990 PARKER-HANNIFIN CORPORATION DBA HYDRAULIC VALVE DIV
665-13-4D2 86768 TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC

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Technical Data | NSN 4820-01-188-1779

Characteristic Specifications
MATERIAL ALUMINUM ALLOY BODY
STYLE DESIGNATOR C7 STRAIGHT THRU
FLOW CONTROL DEVICE POPPET
MAXIMUM OPERATING TEMP -40.0 DEG FAHRENHEIT 1ST RESPONSE 250.0 DEG FAHRENHEIT 2ND RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED INTERNAL BOSS ALL ENDS
CONNECTION STYLE G4 GASKET SEAL ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED 4.000 INCHES 1ST END
THREAD SERIES DESIGNATOR UNF ALL ENDS
NOMINAL THREAD SIZE 0.438 INCHES 1ST END
THREAD CLASS 3B ALL ENDS
THREAD DIRECTION RIGHT-HAND 1ST END
ADJUSTABLE PRESSURE RANGE 3000.0 TO 3600.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-188-1779

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 4820-01-188-1779

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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each