Product Details | SAFETY RELIEF VALVE

4820-01-505-7901 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: B1435913, B14359-13, 4820-01-505-7901, 01-505-7901, 4820015057901, 015057901

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 17 MAR 2003 01-505-7901

Drawings & Photos | NSN 4820-01-505-7901


Demand History | NSN 4820-01-505-7901

Part Number Request Date QTY Origin
B1435913 2024-06-163 1 US
4820-01-505-7901 2022-06-181 0 NECO
B14359-13 2022-06-174 0
4820-01-505-7901 2022-06-173 0 NECO
4820-01-505-7901 2021-08-239 0 NECO
4820-01-505-7901 2021-04-113 2 US
B14359-13 2019-07-194 12
4820-01-505-7901 2019-07-193 12 NECO
4820-01-505-7901 2019-06-155 1 us
4820-01-505-7901 2019-06-155 5 us
4820-01-505-7901 2018-10-278 1 us
B1435913 2018-10-278 1 us
4820-01-505-7901 2018-10-277 1 us
B14359-13 2017-08-224 3
4820-01-505-7901 2017-08-223 3 NECO
4820-01-505-7901 2015-03-82 1 United States
4820-01-505-7901 2013-11-320 1 DIBBS
4820-01-505-7901 2013-10-304 1 DIBBS
4820-01-505-7901 2013-02-59 18 US
4820-01-505-7901 2013-02-56 1 DIBBS
4820-01-505-7901 2013-02-56 2 DIBBS
4820-01-505-7901 2013-02-53 10 DIBBS
4820-01-505-7901 2010-12-358 1 DIBBS
4820-01-505-7901 2010-08-242 1 DIBBS

Cross Reference | NSN 4820-01-505-7901

Part Number Cage Code Manufacturer
B14359-13 04577 CARLETON TECHNOLOGIES INC

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Technical Data | NSN 4820-01-505-7901

Characteristic Specifications
MATERIAL STEEL COMP 304L BODY RUBBER NEOPRENE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION ASTM DS-56/UNS:S304003 ASSN STD SINGLE MATERIAL RESPONSE BODY
STYLE DESIGNATOR B5 OFFSET
OFFSET DISTANCE 1.035 INCHES
FLOW CONTROL DEVICE DIAPHRAGM
MEDIA FOR WHICH DESIGNED REFRIGERANT, HALOGENATED SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 85.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 150.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE UNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE G20B SOCKET ALL ENDS
NOMINAL PIPE SIZE ACCOMMODATED 1.400 INCHES ALL ENDS
OPENING PRESSURE SETTING 75.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-505-7901

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.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
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 4820-01-505-7901

Category Code Description
Cognizance Codes7HDepot level reparable shipboard and base equipment, assemblies, components and repair parts related to Naval Sea Systems Command equipment
Naval Inventory Control Point, Mechanicsburg
Source of SupplyNRPNAVICP-ERP
700 Robbins Avenue
Philadelphia, PA 19111-5098
AgencyDNDepartment of the Navy
Service OrganizationLLead Service - 22 (Repairable)
ReparabilityHDepot Level Reparable
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