Product Details | SAFETY RELIEF VALVE

4820-01-398-3430 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: 22118, 22118 ASSY 22118-01C, 2211801C, 22118-01C, 22118ASSY2211801C, 50M-2 2IN P/N 22118-01C, 50M22INPN2211801C, 4820-01-398-3430, 01-398-3430, 4820013983430, 013983430

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 31 OCT 1994 01-398-3430

Drawings & Photos | NSN 4820-01-398-3430


Demand History | NSN 4820-01-398-3430

Part Number Request Date QTY Origin
50M-2 2IN P/N 22118-01C 2024-09-260 2 DIBBS
50M-2 2IN P/N 22118-01C 2024-09-249 2 DIBBS
4820-01-398-3430 2018-09-254 1 DIBBS
4820-01-398-3430 2018-08-242 1 DIBBS
4820-01-398-3430 2015-02-39 1 DIBBS
4820-01-398-3430 2014-03-70 2 DIBBS

Cross Reference | NSN 4820-01-398-3430

Part Number Cage Code Manufacturer
22118 86184 GRISWOLD INDUSTRIES, CO. DBA CLA-VAL CO
22118 ASSY 22118-01C 86184 GRISWOLD INDUSTRIES, CO. DBA CLA-VAL CO
22118-01C 86184 GRISWOLD INDUSTRIES, CO. DBA CLA-VAL CO
50M-2 2IN P/N 22118-01C 86184 GRISWOLD INDUSTRIES, CO. DBA CLA-VAL CO

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Technical Data | NSN 4820-01-398-3430

Characteristic Specifications
MATERIAL RUBBER BODY
STYLE DESIGNATOR C8A STRAIGHT THRU FLANGED ENDS
FACE TO FACE DISTANCE 10.000 INCHES
VALVE SIZE 2.000 INCHES
FLOW CONTROL DEVICE DISK
MAXIMUM OPERATING PRESSURE 250.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE FLANGE ALL ENDS
FLANGE SHAPE ROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER 5.563 INCHES ALL ENDS
NOMINAL THICKNESS 0.813 INCHES ALL ENDS
BOLT HOLE QUANTITY 6 ALL ENDS
BOLT HOLE NOMINAL DIAMETER 0.688 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER 4.438 INCHES ALL ENDS
FLANGE FACE DESIGN PLAIN ALL ENDS
ADJUSTABLE PRESSURE RANGE 65.0 TO 180.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-398-3430

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 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 4820-01-398-3430

Category Code Description
Cognizance Codes3BNavy-owned stocks of field level repairable DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
ReparabilityDField Level Reparables
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