Product Details | SAFETY RELIEF VALVE

4820-01-202-4109 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: NMP257 2 IN, NMP257 2IN, NMP2572IN, LL-2220-C 2IN, LL2220C2IN, 4820-01-202-4109, 01-202-4109, 4820012024109, 012024109

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 02 MAR 1985 01-202-4109

Drawings & Photos | NSN 4820-01-202-4109


Cross Reference | NSN 4820-01-202-4109

Part Number Cage Code Manufacturer
LL-2220-C 2IN 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
LL-2220-C 2IN 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM
LL-2220-C 2IN 75954 KUNKLE INDUSTRIES INC LONERGAN VALVE DIV
NMP257 2 IN 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM
NMP257 2IN 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
NMP257 2IN 75954 KUNKLE INDUSTRIES INC LONERGAN VALVE DIV

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Technical Data | NSN 4820-01-202-4109

Characteristic Specifications
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE DISK
VALVE OPERATION METHOD AUTOMATIC
BONNET TYPE INSIDE SPRING
BONNET ATTACHMENT METHOD UNION
DISK LOADING METHOD SPRING
SPECIAL FEATURES VALVE SIZE 2.000 IN.

Restrictions/Controls & Freight Information | NSN 4820-01-202-4109

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 593 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 Z unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 4820-01-202-4109

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