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NSN 4820-00-287-4030, 4820002874030
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 002874030
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.
Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS® Summary

National Stock Number 4820-00-287-4030

National Stock Number (NSN) 4820-00-287-4030, or NIIN 002874030, (valve,safety relief) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 4 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. 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.

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

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 4820002874030 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

DISK LOADING METHOD
(ADSU) SPRING
BOLT HOLE NOMINAL DIAMETER
(CWCQ) 0.688 INCHES 2ND END
BOLT HOLE NOMINAL DIAMETER
(CWCQ) 0.812 INCHES 1ST END
BOLT HOLE QUANTITY
(AECS) 4 1ST END
BOLT HOLE QUANTITY
(AECS) 7 2ND END
BONNET TYPE
(ADSR) EXPOSED SPRING
BONNET ATTACHMENT METHOD
(ADST) BOLTED
BOLT CIRCLE NOMINAL DIAMETER
(CWCT) 4.500 INCHES 1ST END
BOLT CIRCLE NOMINAL DIAMETER
(CWCT) 5.188 INCHES 2ND END
CONNECTION TYPE
(AWLS) FLANGE 1ST END
CONNECTION TYPE
(AWLS) FLANGE 2ND END
FIRST CONNECTION FACE TO CENTERLINE DISTANCE
(CWCL) 4.500 INCHES
FLANGE FACE DESIGN
(CWDF) PLAIN 2ND END
FLANGE FACE DESIGN
(CWDF) RAISED STRAIGHT 1ST END
FLANGE SHAPE
(ARKN) ROUND WITH HOLES 1ST END
FLANGE SHAPE
(ARKN) ROUND WITH HOLES 2ND END
FLOW CONTROL DEVICE
(ADQU) DISK
NOMINAL THICKNESS
(CWCK) 0.750 INCHES 2ND END
NOMINAL THICKNESS
(CWCK) 1.125 INCHES 1ST END
OPENING PRESSURE SETTING
(CSDC) 438.0 POUNDS PER SQUARE INCH
MATERIAL
(MATT) STEEL BODY
MATERIAL
(MATT) STEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIAL
(MATT) STEEL SEAT
MATERIAL
(MATT) STEEL STEM
MAXIMUM OPERATING PRESSURE
(CQGM) 600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP
(AEHZ) 650.0 DEG FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED
(MEDA) STEAM SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER
(CWCD) 6.125 INCHES 1ST END
NOMINAL OUTSIDE DIAMETER
(CWCD) 6.500 INCHES 2ND END
SECOND CONNECTION FACE TO CENTERLINE DISTANCE
(CWCR) 5.000 INCHES
RAISED FACE NOMINAL DIAMETER
(CWDL) 2.875 INCHES 1ST END
RAISED FACE NOMINAL HEIGHT
(CWDH) 0.250 INCHES 1ST END
VALVE OPERATION METHOD
(AQLR) AUTOMATIC OR MANUAL
VALVE SIZE
(CCFG) 1.500 INCHES
VALVE DISCHARGE FLOW RATE
(ADSY) 10500.0 POUNDS PER HOUR
STYLE DESIGNATOR
(STYL) ANGLE FLANGED ENDS
STYLE DESIGNATOR
(STYL) ERR-090

Manufacturer Part Numbers


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