Product Details | SAFETY RELIEF VALVE

4820-01-219-6518 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: 1900K, 1900K REV 4 AND B/M 9000601, 1900KREV4ANDBM9000601, 1905K1, 1905KC 165T187P, 1905KC1, 1905KC-1, 1905KC165T187P, 4820-01-219-6518, 01-219-6518, 4820012196518, 012196518

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 31 OCT 1985 01-219-6518

Drawings & Photos | NSN 4820-01-219-6518


Demand History | NSN 4820-01-219-6518

Part Number Request Date QTY Origin
4820-01-219-6518 2017-03-05 1 DIBBS

Cross Reference | NSN 4820-01-219-6518

Part Number Cage Code Manufacturer
1900K 16497 DRESSER, INC. DBA DRESSER EQUIPMENT GROUP
1900K REV 4 AND B/M 9000601 16497 DRESSER, INC. DBA DRESSER EQUIPMENT GROUP
1905K1 16497 DRESSER, INC. DBA DRESSER EQUIPMENT GROUP
1905KC 165T187P 16497 DRESSER, INC. DBA DRESSER EQUIPMENT GROUP
1905KC-1 16497 DRESSER, INC. DBA DRESSER EQUIPMENT GROUP

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Technical Data | NSN 4820-01-219-6518

Characteristic Specifications
BONNET ATTACHMENT METHOD BOLTED
BOLT HOLE NOMINAL DIAMETER 0.625 INCHES ALL ENDS
MATERIAL STEEL BODY
NOMINAL OUTSIDE DIAMETER 7.500 INCHES 2ND END
NOMINAL OUTSIDE DIAMETER 9.000 INCHES 1ST END
SECOND CONNECTION FACE TO CENTERLINE DISTANCE 6.125 INCHES
BOLT HOLE QUANTITY 4 2ND END
FIRST CONNECTION FACE TO CENTERLINE DISTANCE 6.375 INCHES
RAISED FACE NOMINAL DIAMETER 5.000 INCHES 2ND END
MATERIAL DOCUMENT AND CLASSIFICATION ASTM A582 TYPE 416 COND A ASSN STD SINGLE MATERIAL RESPONSE STEM
BOLT CIRCLE NOMINAL DIAMETER 7.500 INCHES 1ST END
STYLE DESIGNATOR C1A ANGLE FLANGED ENDS
NOMINAL THICKNESS 0.938 INCHES 1ST END
CONNECTION TYPE FLANGE ALL ENDS
FLANGE FACE DESIGN RAISED STRAIGHT ALL ENDS
RAISED FACE NOMINAL DIAMETER 6.188 INCHES 1ST END
FLOW CONTROL DEVICE DISK
BOLT HOLE QUANTITY 8 1ST END
NOMINAL THICKNESS 0.750 INCHES 2ND END
VALVE SIZE 4.000 INCHES
MATERIAL STEEL CORROSION RESISTING STEM
MAXIMUM OPERATING PRESSURE 285.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 450.0 DEG FAHRENHEIT SINGLE RESPONSE
DISK LOADING METHOD SPRING
VALVE OPERATION METHOD AUTOMATIC
MATERIAL DOCUMENT AND CLASSIFICATION ASME SA216 GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE BODY
FLANGE SHAPE ROUND WITH HOLES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER 6.000 INCHES 2ND END
BONNET TYPE INSIDE SPRING

Restrictions/Controls & Freight Information | NSN 4820-01-219-6518

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 4820-01-219-6518

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
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