Product Details | SAFETY RELIEF VALVE

4820-01-494-4920 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: CDS17074, 20206, 20206K51M, 20206K51M/CDS17, 20206K51M/CDS17074, 20206K51MCDS17, 20206K51MCDS17074, 4820-01-494-4920, 01-494-4920, 4820014944920, 014944920

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 13 FEB 2002 01-494-4920

Demand History | NSN 4820-01-494-4920

Part Number Request Date QTY Origin
20206K51M 2022-10-278 1 DIBBS
20206K51M/CDS17074 2022-10-278 1 DIBBS
CDS17074 2022-10-278 1 DIBBS

Cross Reference | NSN 4820-01-494-4920

Part Number Cage Code Manufacturer
20206 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20206K51M 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20206K51M 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM
20206K51M/CDS17 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20206K51M/CDS17074 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
CDS17074 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM

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Technical Data | NSN 4820-01-494-4920

Characteristic Specifications
MAXIMUM OPERATING TEMP 165.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
NOMINAL PIPE SIZE ACCOMMODATED 1.000 INCHES 1ST END
OPENING PRESSURE SETTING 72.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE 66.0 TO 75.0 POUNDS PER SQUARE INCH
SPECIAL FEATURES 1.000 IN RELIEF VALVE TYPE UU1751-T; SPRING NUMBER: 100-K; 424 SCFM RATED CAPACITY; 84 PSIG ACCUMULATION PRESS. MAX.; 60 PSIG RESEAT PRESSURE MIN.; 7PSIG BACK PRESSURE MAX.; SEAT LEAKAGE: NONE IN THREE MIN. AT 60 PSIG
III END ITEM IDENTIFICATION LOS ANGELES CLASS SSN (688), P/N 20206 VALVE
III PART NAME ASSIGNED BY CONTROLLING AGENCY VALVE,SAFETY RELIEF

Restrictions/Controls & Freight Information | NSN 4820-01-494-4920

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 4820-01-494-4920

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 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