Product Details | SAFETY RELIEF VALVE

4820-01-377-6861 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: CKCNN05CCCA008, CKCNN05CCC-A008, DX62FF-05-1/2IN, DX62FF0512IN, 20291, 20291A0350065, 20291M51SS, 20291M51SS CDS-1, 20291M51SS CDS-16329, 20291M51SSCDS1, 20291M51SSCDS16329, 4820-01-377-6861, 01-377-6861, 4820013776861, 013776861

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 23 JUL 1993 01-377-6861

Drawings & Photos | NSN 4820-01-377-6861


Demand History | NSN 4820-01-377-6861

Part Number Request Date QTY Origin
20291 2019-10-287 20 United States
20291 2019-03-79 6 US
20291 2014-04-112 30 Turkey

Cross Reference | NSN 4820-01-377-6861

Part Number Cage Code Manufacturer
20291 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20291A0350065 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20291A0350065 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM
20291M51SS 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20291M51SS 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM
20291M51SS CDS-1 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM
20291M51SS CDS-16329 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
CKCNN05CCC-A008 5P967 DANTE VALVE COMPANY INC
CKCNN05CCC-A008 65079 DANCO VALVE COMPANY
DX62FF-05-1/2IN 5P967 DANTE VALVE COMPANY INC
DX62FF-05-1/2IN 65079 DANCO VALVE COMPANY

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Technical Data | NSN 4820-01-377-6861

Characteristic Specifications
MATERIAL STEEL UNS J03002 BODY STEEL COMP 304 FLOW CONTROL DEVICE STEEL COMP 304 STEM
STYLE DESIGNATOR C1A ANGLE FLANGED ENDS
FIRST CONNECTION FACE TO CENTERLINE DISTANCE 3.250 INCHES
SECOND CONNECTION FACE TO CENTERLINE DISTANCE 3.250 INCHES
VALVE SIZE 0.500 INCHES
FLOW CONTROL DEVICE DISK
MAXIMUM OPERATING PRESSURE 275.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 150.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC OR MANUAL
CONNECTION TYPE FLANGE ALL ENDS
FLANGE SHAPE ROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER 3.500 INCHES ALL ENDS
NOMINAL THICKNESS 0.438 INCHES ALL ENDS
BOLT HOLE QUANTITY 4 ALL ENDS
BOLT HOLE NOMINAL DIAMETER 0.625 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER 2.375 INCHES ALL ENDS
FLANGE FACE DESIGN RAISED STRAIGHT ALL ENDS
RAISED FACE NOMINAL HEIGHT 0.062 INCHES ALL ENDS
RAISED FACE NOMINAL DIAMETER 1.375 INCHES ALL ENDS
ADJUSTABLE PRESSURE RANGE 63.0 TO 70.0 POUNDS PER SQUARE INCH
III END ITEM IDENTIFICATION NIMITZ CLASS CVN

Restrictions/Controls & Freight Information | NSN 4820-01-377-6861

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 4820-01-377-6861

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