Product Details | SAFETY RELIEF VALVE

4820-00-038-7018 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: MILV24332, MILV24332GRB1 1-2 250-15-30F, MILV24332GRB1122501530F, 20318, 4820-00-038-7018, 00-038-7018, 4820000387018, 000387018

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 10 NOV 1972 00-038-7018

Drawings & Photos | NSN 4820-00-038-7018


Demand History | NSN 4820-00-038-7018

Part Number Request Date QTY Origin
MILV24332 2025-12-346 1 United States

Cross Reference | NSN 4820-00-038-7018

Part Number Cage Code Manufacturer
20318 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20318 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM
MILV24332 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MILV24332GRB1 1-2 250-15-30F 03950 NAVAL INVENTORY CONTROL POINT MECHANICSBURG

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Technical Data | NSN 4820-00-038-7018

Characteristic Specifications
MATERIAL COPPER ALLOY 922 BODY STEEL FLOW CONTROL DEVICE STEEL SEAT
MATERIAL DOCUMENT AND CLASSIFICATION QQ-C-390,ALLOYD4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY ASTMA276,TYPE303 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE ASTMA276,TYPE303 ASSN STD SINGLE MATERIAL RESPONSE SEAT
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED WATER, FRESH SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 250.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 70.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE DISCHARGE FLOW RATE 10.0 GALLONS PER MINUTE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE FLANGE ALL ENDS
FLANGE SHAPE ROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER 5.620 INCHES ALL ENDS
NOMINAL THICKNESS 0.812 INCHES ALL ENDS
BOLT HOLE QUANTITY 6 ALL ENDS
BOLT HOLE NOMINAL DIAMETER 0.562 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER 3.938 INCHES ALL ENDS
FLANGE FACE DESIGN PLAIN ALL ENDS
RENEWABLE SEAT RING TYPE THREADED
BONNET TYPE INSIDE SPRING
BONNET ATTACHMENT METHOD THREADED
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 30.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE 15.0 TO 30.0 POUNDS PER SQUARE INCH
FEATURES PROVIDED PRESSURE TIGHT OUTLET SIDE
TEST DATA DOCUMENT 81349-MIL-S-901 SPECIFICATION
NONDEFINITIVE SPEC/STD DATA B GRADE
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MILV24332

Restrictions/Controls & Freight Information | NSN 4820-00-038-7018

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:UPrecious metal type is unknown
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 4820-00-038-7018

Category Code Description
Cognizance Codes3BNavy-owned stocks of field level repairable DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
ReparabilityDField Level Reparables
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