Product Details | PRESSURE AND TEMPERATURE RELIEF VALVE

4820-00-851-9479 A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also VALVE, SAFETY RELIEF and VALVE, REGULATING. TEMPERATURE.

Part Alternates: 131363-400, 4820-00-851-9479, 00-851-9479, 4820008519479, 131363400, 008519479

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 22 NOV 1966 00-851-9479

Drawings & Photos | NSN 4820-00-851-9479


Cross Reference | NSN 4820-00-851-9479

Part Number Cage Code Manufacturer
131363-400 24374 BECHTEL TECHNICAL SERVICES INC MACHINERY APPARATUS OPN

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Technical Data | NSN 4820-00-851-9479

Characteristic Specifications
BODY STYLE A43 SINGLE CONNECTION ANGLE FLOW
BODY MATERIAL STEEL, AISI 304
SEAT MATERIAL STEEL, AISI 304
FLOW CONTROL DEVICE PISTON, FREE TYPE
FLOW CONTROL DEVICE MATERIAL STEEL, AISI 304
STEM MATERIAL STEEL, AISI 304
END CONNECTION QUANTITY 2
FIRST END CONNECTION TYPE BUTT WELD PIPE
FIRST END STYLE DESIGNATOR L1 BEVELED
FIRST END NOMINAL PIPE SIZE ACCOMMODATED 0.500 INCHES
SECOND END RELATIONSHIP WITH FIRST END IDENTICAL
TEMP ADJUSTABILITY NOT ADJUSTABLE
MEDIA FOR WHICH DESIGNED WATER, FRESH
TEMP RATING 250.0 DEG FAHRENHEIT
VALVE DISCHARGE FLOW RATE NOT RATED
OPENING PRESSURE SETTING NOT RATED
ADJUSTABLE PRESSURE RANGE 200.0 TO 3500.0 POUNDS PER SQUARE INCH
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTERACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CRITICALITY CODE JUSTIFICATION ZZZY
MANUFACTURERS CODE 24374
DESIGN CONTROL REFERENCE 131363-400

Restrictions/Controls & Freight Information | NSN 4820-00-851-9479

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:FMunitions List Item or Commerce Control List Item. Demilitarization required. Demilitarization Instructions to be furnished by the Item/Technical Manager.
Controlled Inventory Item Code:7NON-SENSITIVE (SRC-N/A) - UNCLASSIFIED AA&E: OR ITEMS ASSIGNED A DEMILITARIZATION CODE OTHER THAN A, B, Q, OR P FOR WHICH ANOTHER CIIC IS INAPPROPRIATE. (NOTE: THE LOSS, THEFT, UNLAWFUL DISPOSITION, AND/OR RECOVERY OF AN ITEM WITH CIIC 7 WILL BE INVESTIGATED IN ACCORDANCE WITH DOD-4000-25-2-M AND DOD 7200.14-R, VOLUME 12, CHAPTER 7).
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:CThe item has critical features such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input).
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 P 77.5
Less than truck load rating P 77.5
Water commodity Code 594 unknown
Originating Activity Code HA Naval Sea Systems Command
Washington, DC 20362-5101
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 4820-00-851-9479

Category Code Description
Cognizance Codes2SMajor shipboard hull, mechanical, and electrical equipment
Naval Sea Systems Command
Special Material IDX1Nuclear power
Issue Repair, or RequisitionAFSubmit/refer requisitions to NAVSEA (other than ammunition-N23).
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 CodesASERVICE/AGENCY-REGULATED (Service/Agency use only.) # Issue, transfer or shipment is controlled by authorities above the ICP level to assure proper and equitable distribution. 1. The use or stockage of the item requires release authority based on prior or concurrent justification. 2. Requisitions will be submitted in accordance with Agency/Service requisitioning procedures.
Controlled Item Code7NON-SENSITIVE (SRC-N/A) - UNCLASSIFIED AA&E: OR ITEMS ASSIGNED A DEMILITARIZATION CODE OTHER THAN A, B, Q, OR P FOR WHICH ANOTHER CIIC IS INAPPROPRIATE. (NOTE: THE LOSS, THEFT, UNLAWFUL DISPOSITION, AND/OR RECOVERY OF AN ITEM WITH CIIC 7 WILL BE INVESTIGATED IN ACCORDANCE WITH DOD-4000-25-2-M AND DOD 7200.14-R, VOLUME 12, CHAPTER 7).
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each