Product Details | SAFETY RELIEF VALVE

4820-01-200-1727 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: 5159A8TB300, 5159A-8TB-300, 5335906, 4820-01-200-1727, 01-200-1727, 4820012001727, 012001727

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 31 JAN 1985 01-200-1727

Drawings & Photos | NSN 4820-01-200-1727


Demand History | NSN 4820-01-200-1727

Part Number Request Date QTY Origin
4820-01-200-1727 2012-10-278 1 DIBBS
4820-01-200-1727 2011-12-347 33 DIBBS

Cross Reference | NSN 4820-01-200-1727

Part Number Cage Code Manufacturer
5159A-8TB-300 91816 CIRCOR AEROSPACE, INC. DBA CIRCLE SEAL CONTROLS
5335906 15090 RAYTHEON COMPANY DBA RAYTHEON
5335906 53711 NAVAL SEA SYSTEMS COMMAND

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Technical Data | NSN 4820-01-200-1727

Characteristic Specifications
MATERIAL ALUMINUM ALLOY 2024 BODY RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
SURFACE TREATMENT ANODIZE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE
STYLE DESIGNATOR C7 STRAIGHT THRU
FLOW CONTROL DEVICE POPPET
MEDIA FOR WHICH DESIGNED AIR 1ST RESPONSE ALCOHOL, ETHYL 2ND RESPONSE AMMONIA, GASEOUS 3RD RESPONSE AMMONIA, LIQUID 4TH RESPONSE REFRIGERANT 12 5TH RESPONSE
MAXIMUM OPERATING PRESSURE 2500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP -40.0 DEG FAHRENHEIT 1ST RESPONSE 275.0 DEG FAHRENHEIT 2ND RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED INTERNAL BOSS 1ST END THREADED INTERNAL BOSS 2ND END
CONNECTION STYLE G42 FLARED 1ST END G4 GASKET SEAL 2ND END
SEAT ANGLE 37.0 DEGREES ALL ENDS
THREAD SERIES DESIGNATOR UNJF 1ST END UNF 2ND END
NOMINAL THREAD SIZE 0.750 INCHES ALL ENDS
THREAD CLASS 3A 1ST END 3B 2ND END
THREAD DIRECTION RIGHT-HAND ALL ENDS
OPENING PRESSURE SETTING 300.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE 240.0 TO 360.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-200-1727

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:BMunitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.)
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 576 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 4820-01-200-1727

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
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