Product Details | SAFETY RELIEF VALVE

4820-01-233-8957 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: MXL508, MXL508 PIECE 11, MXL508PIECE11, 4820-01-233-8957, 01-233-8957, 4820012338957, 012338957

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 04 JUN 1986 01-233-8957

Cross Reference | NSN 4820-01-233-8957

Part Number Cage Code Manufacturer
MXL508 97384 AAI CORPORATION DBA TEXTRON SYSTEMS
MXL508 PIECE 11 65090 JERED BROWN BROS INC LIBERTY WORKS THE
MXL508 PIECE 11 98523 JERED LLC DBA PAR

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Technical Data | NSN 4820-01-233-8957

Characteristic Specifications
MATERIAL STEEL BODY NICKEL ALLOY FLOW CONTROL DEVICE
FLOW CONTROL DEVICE POPPET
MEDIA FOR WHICH DESIGNED HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE FLANGE ALL ENDS
FLANGE SHAPE ROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER 6.500 INCHES 1ST END 6.000 INCHES 2ND END
BOLT HOLE QUANTITY 8 1ST END 4 2ND END
BOLT HOLE NOMINAL DIAMETER 0.625 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER 5.500 INCHES 1ST END 4.750 INCHES 2ND END
FLANGE FACE DESIGN RAISED STRAIGHT 1ST END PLAIN 2ND END
RAISED FACE NOMINAL HEIGHT 0.188 INCHES 1ST END
DISK LOADING METHOD SPRING
ADJUSTABLE PRESSURE RANGE 900.0 TO 1200.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-233-8957

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 4820-01-233-8957

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