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NSN 4820-01-114-5945, 4820011145945
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 011145945
Codification Country
United States
Item Name Code
INC 05488
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
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DLMS® Summary

National Stock Number 4820-01-114-5945

National Stock Number (NSN) 4820-01-114-5945, or NIIN 011145945, (valve,safety relief) was assigned June 19, 1981 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.

This part number has not been procured by the US Government in over 5 years.

This NSN is unique to one weapons system.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 01, 2013, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 05488. [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.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820011145945 does not contain precious metals.

This NSN is associated to Schedule B 8481400000: safety or relief valves. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332911: industrial valve manufacturing.

This information was last updated on .


Technical Characteristics

CONNECTION STYLE
(AHNC) G9 PLAIN,OPTIONAL END(PIPE) 2ND END
CONNECTION TYPE
(AWLS) THREADED EXTERNAL TUBE 1ST END
CONNECTION TYPE
(AWLS) THREADED INTERNAL PIPE 2ND END
CONNECTION STYLE
(AHNC) FLARELESS (TUBE) 1ST END
CONNECTION STYLE
(AHNC) PLAIN,OPTIONAL END(PIPE) 2ND END
FLOW CONTROL DEVICE
(ADQU) POPPET
MATERIAL
(MATT) STEEL CORROSION RESISTING BODY
MATERIAL
(MATT) STEEL CORROSION RESISTING FLOW CONTROL DEVICE
NOMINAL THREAD SIZE
(CQJX) 0.250 INCHES 2ND END
NOMINAL THREAD SIZE
(CQJX) 0.250 INCHES 1ST END
OPENING PRESSURE SETTING
(CSDC) 3250.0 POUNDS PER SQUARE INCH
SEAT ANGLE
(CQRB) 12.5 DEGREES 1ST END
STYLE DESIGNATOR
(STYL) ANGLE
SURFACE TREATMENT
(SFTT) CADMIUM
THREAD DIRECTION
(AAJF) RIGHT-HAND ALL ENDS
THREAD CLASS
(AAJD) 2A 1ST END
THREAD CLASS
(AAJD) 2B 2ND END
THREAD SERIES DESIGNATOR
(THSD) UNF 2ND END
THREAD SERIES DESIGNATOR
(THSD) UNF 1ST END
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
CONNECTION STYLE
(AHNC) G45 FLARELESS (TUBE) 1ST END
STYLE DESIGNATOR
(STYL) ERR-090

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