Product Details | SAFETY RELIEF VALVE

4820-01-556-8005 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: NDSXX04SDD, DN3400-SW ASSY NDSXX04SDD, DN3400SWASSYNDSXX04SDD, MILV22549D, MIL-V-22549D, 4820-01-556-8005, 01-556-8005, 4820015568005, 015568005

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 05 OCT 2007 01-556-8005

Drawings & Photos | NSN 4820-01-556-8005


Demand History | NSN 4820-01-556-8005

Part Number Request Date QTY Origin
4820-01-556-8005 2010-11-306 4 DIBBS

Cross Reference | NSN 4820-01-556-8005

Part Number Cage Code Manufacturer
DN3400-SW ASSY NDSXX04SDD 5P967 DANTE VALVE COMPANY INC
DN3400-SW ASSY NDSXX04SDD 65079 DANCO VALVE COMPANY
MIL-V-22549D 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
NDSXX04SDD 5P967 DANTE VALVE COMPANY INC
NDSXX04SDD 65079 DANCO VALVE COMPANY

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Technical Data | NSN 4820-01-556-8005

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING OVERALL
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED AIR SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 425.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE DISCHARGE FLOW RATE 172.8 CUBIC FEET PER MINUTE
VALVE OPERATION METHOD AUTOMATIC OR MANUAL
CONNECTION TYPE UNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE G20B SOCKET ALL ENDS
NOMINAL PIPE SIZE ACCOMMODATED 0.750 INCHES ALL ENDS
RENEWABLE SEAT RING TYPE RETAINING SCREW
DISK LOADING METHOD SPRING
ADJUSTABLE PRESSURE RANGE 23.0 TO 45.0 POUNDS PER SQUARE INCH
FURNISHED ITEMS AND QUANTITY 1 LEVER AND 2 TAILPIECE AND 2 NUT
SPECIAL FEATURES VALVE PROVIDED WITH GAGGING DEVICE, BONNET PLUG, ADJUSTING RING PIN; DISC INSERT MATERIAL TEFLON; O-RING MATERIAL VITON
SPECIFICATION/STANDARD DATA MIL-V-22549D GOVERNMENT SPECIFICATION
III END ITEM IDENTIFICATION OVERHAUL/AVAILABILITY CVN70
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-V-22549D

Restrictions/Controls & Freight Information | NSN 4820-01-556-8005

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 HD Naval Inventory Control Point
Mechanicsburg, PA 17055-0788
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 4820-01-556-8005

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