Product Details | SAFETY RELIEF VALVE

4820-01-187-1126 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: 8041, 8041100M41, 8041-100M-41, 4820-01-187-1126, 01-187-1126, 4820011871126, 011871126

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 18 AUG 1984 01-187-1126

Drawings & Photos | NSN 4820-01-187-1126


Cross Reference | NSN 4820-01-187-1126

Part Number Cage Code Manufacturer
8041 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
8041-100M-41 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY

Request a Quote

What Our Customers Say

Compare

NSNs for Compare ( up to 4 ): Add 4820-01-187-1126

Technical Data | NSN 4820-01-187-1126

Characteristic Specifications
MATERIAL COPPER ALLOY BODY NICKEL ALLOY FLOW CONTROL DEVICE COPPER ALLOY SEAT BRONZE STEM
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED STEAM 1ST RESPONSE WATER-OIL-GAS 2ND RESPONSE
MAXIMUM OPERATING PRESSURE 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 425.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE FLANGE 1ST END UNTHREADED INTERNAL PIPE 2ND END
CONNECTION STYLE G20B SOCKET 2ND END
FLANGE SHAPE ROUND WITH HOLES 1ST END
NOMINAL OUTSIDE DIAMETER 4.250 INCHES 1ST END
NOMINAL THICKNESS 0.375 INCHES 1ST END
BOLT HOLE QUANTITY 4 1ST END
BOLT HOLE NOMINAL DIAMETER 0.625 INCHES 1ST END
BOLT CIRCLE NOMINAL DIAMETER 3.125 INCHES 1ST END
FLANGE FACE DESIGN PLAIN 1ST END
NOMINAL PIPE SIZE ACCOMMODATED 1.000 INCHES 2ND END
BONNET TYPE INSIDE SPRING
BONNET ATTACHMENT METHOD BOLTED
ADJUSTABLE PRESSURE RANGE 91.0 TO 105.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-187-1126

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 4820-01-187-1126

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