Product Details | SAFETY RELIEF VALVE

4820-01-161-0151 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: 20193, 20193EM51M, 4820-01-161-0151, 01-161-0151, 4820011610151, 011610151

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 31 AUG 1983 01-161-0151

Drawings & Photos | NSN 4820-01-161-0151


Demand History | NSN 4820-01-161-0151

Part Number Request Date QTY Origin
2019301S0025 2024-05-126 2 DIBBS
20193EM51M 2024-05-126 2 DIBBS
2019301S0025 2024-03-73 2 DIBBS
20193EM51M 2024-03-73 2 DIBBS
2019301S0025 2023-11-330 2 DIBBS
20193EM51M 2023-11-330 2 DIBBS
2019301S0025 2023-09-268 2 DIBBS
20193EM51M 2023-09-268 2 DIBBS
2019301S0025 2023-06-163 2 DIBBS
20193EM51M 2023-06-163 2 DIBBS
2019301S0025 2022-11-318 2 DIBBS
20193EM51M 2022-11-318 2 DIBBS
2019301S0025 2022-04-108 2 DIBBS
20193EM51M 2022-04-108 2 DIBBS
2019301S0025 2022-04-96 2 DIBBS
20193EM51M 2022-04-96 2 DIBBS
20193EM51M 2021-05-131 1 DIBBS
20193EM51M 2019-05-128 1 DIBBS
20193EM51M 2019-04-115 1 DIBBS

Cross Reference | NSN 4820-01-161-0151

Part Number Cage Code Manufacturer
20193 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20193EM51M 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20193EM51M 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM

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Technical Data | NSN 4820-01-161-0151

Characteristic Specifications
MATERIAL COPPER ALLOY BODY PLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICE NICKEL ALLOY SEAT NICKEL ALLOY STEM
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE DISK
MAXIMUM OPERATING PRESSURE 1500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 165.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE UNTHREADED INTERNAL TUBE ALL ENDS
CONNECTION STYLE G21A STREAMLINED WITH ONE BRAZING RING ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED 0.500 INCHES ALL ENDS
ADJUSTABLE PRESSURE RANGE 25.0 TO 29.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-161-0151

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 576 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 4820-01-161-0151

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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each