Product Details | SAFETY RELIEF VALVE

4820-01-187-1970 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: D48DUU-04 3/4 INCH , D48DUU0434INCH, D48UU-04 3/4 INCH, D48UU0434INCH, 20251, 202518926SS, 20251-8-926SS, 4820-01-187-1970, 01-187-1970, 4820011871970, 011871970

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 21 AUG 1984 01-187-1970

Drawings & Photos | NSN 4820-01-187-1970


Cross Reference | NSN 4820-01-187-1970

Part Number Cage Code Manufacturer
20251 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20251-8-926SS 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
D48DUU-04 3/4 INCH 5P967 DANTE VALVE COMPANY INC
D48DUU-04 3/4 INCH 65079 DANCO VALVE COMPANY
D48UU-04 3/4 INCH 5P967 DANTE VALVE COMPANY INC

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Technical Data | NSN 4820-01-187-1970

Characteristic Specifications
MATERIAL NICKEL ALLOY BODY
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE DISK
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE UNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE G20B SOCKET ALL ENDS
NOMINAL PIPE SIZE ACCOMMODATED 1.315 INCHES 1ST END 1.040 INCHES 2ND END
DISK LOADING METHOD SPRING
ADJUSTABLE PRESSURE RANGE 138.0 TO 153.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-187-1970

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 B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
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 4820-01-187-1970

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