Product Details | SAFETY RELIEF VALVE

4820-01-050-2819 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: MILV22549, MIL-V-22549, 20315, 20315LS51SS, 4820-01-050-2819, 01-050-2819, 4820010502819, 010502819

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 04 NOV 1977 01-050-2819

Drawings & Photos | NSN 4820-01-050-2819


Cross Reference | NSN 4820-01-050-2819

Part Number Cage Code Manufacturer
20315 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20315LS51SS 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20315LS51SS 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM
MIL-V-22549 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 4820-01-050-2819

Characteristic Specifications
MATERIAL STEEL BODY STEEL COMP 303 AND PLASTIC POLYCHLOROTRIFLUOROETHYLENE FLOW CONTROL DEVICE STEEL COMP 303 SEAT STEEL COMP 303 STEM
MATERIAL DOCUMENT AND CLASSIFICATION ASTM A351,GRADE CF8 ASSN STD SINGLE MATERIAL RESPONSE BODY QQ-S-764,TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE QQ-S-764,TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE SEAT QQ-S-764,TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE STEM
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED AIR SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 750.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 150.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL BOSS ALL ENDS
CONNECTION STYLE G50 EXTERNAL SEAT FOR GASKET SEAL ALL ENDS
THREAD SERIES DESIGNATOR UN ALL ENDS
NOMINAL THREAD SIZE 2.250 INCHES ALL ENDS
THREAD QUANTITY PER INCH 12 ALL ENDS
THREAD CLASS 3A ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
RENEWABLE SEAT RING TYPE THREADED
BONNET TYPE INSIDE SPRING
BONNET ATTACHMENT METHOD BOLTED
DISK LOADING METHOD SPRING
ADJUSTABLE PRESSURE RANGE 76.0 TO 90.0 POUNDS PER SQUARE INCH
SPECIFICATION/STANDARD DATA 81349-MIL-V-22549 GOVERNMENT SPECIFICATION
NONDEFINITIVE SPEC/STD DATA 1500 RATING AND 1.000 IN. SIZE
III END ITEM IDENTIFICATION SHIP,OHIO CLASS SSN(TRIDENT)
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-V-22549

Restrictions/Controls & Freight Information | NSN 4820-01-050-2819

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:UPrecious metal type is unknown
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 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 4820-01-050-2819

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