Product Details | GASEOUS PRODUCTS PRESSURE EQUALIZING VALVE

4820-01-054-3521 A valve consisting of a single deadweight loaded disk, or two deadweight loaded disks each with a seperate seat. It is specifically designed for the relief of small pressure and vacuum conditions within a tank or other container to or from the atmosphere. The center of a single deadweight loaded disk may contain a spring loaded disk forming an additional seat or aperture. It may be spring loaded and/or equipped with a manual unloader on either the pressure or vacuum side. Exclude VALVE, VACUUM BREAKING.

Part Alternates: TA440787AS959, TA440-787AS959, 787AS959, 4820-01-054-3521, 01-054-3521, 4820010543521, 010543521

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 18 JAN 1978 01-054-3521

Drawings & Photos | NSN 4820-01-054-3521


Demand History | NSN 4820-01-054-3521

Part Number Request Date QTY Origin
4820-01-054-3521 2016-06-159 20 DIBBS

Cross Reference | NSN 4820-01-054-3521

Part Number Cage Code Manufacturer
787AS959 30003 NAVAL AIR SYSTEMS COMMAND
TA440-787AS959 08992 AGM CONTAINER CONTROLS INC. DBA A G M

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Technical Data | NSN 4820-01-054-3521

Characteristic Specifications
BODY STYLE B3 SINGLE CONNECTION, STRAIGHT FLOW
BODY MATERIAL POLYCARBONATE,MIL-P-993
END CONNECTION QUANTITY 1
MAXIMUM OPERATING PRESSURE 0.7 POUNDS PER SQUARE INCH
OPENING PRESSURE SETTING 0.5 POUNDS PER SQUARE INCH
VALVE VENTING DESIGN TYPE ATMOSPHERIC
VALVE RELIEF DESIGN TYPE PRESSURE AND VACUUM
MANUFACTURERS CODE 30003
MFR SOURCE CONTROLLING REFERENCE 787AS959

Restrictions/Controls & Freight Information | NSN 4820-01-054-3521

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 4820-01-054-3521

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Special Material IDP9Phoenix Missile AIM-54
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