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NSN 4820-01-121-8058, 4820011218058
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 011218058
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 4820-01-121-8058

National Stock Number (NSN) 4820-01-121-8058, or NIIN 011218058, (valve,safety relief) was assigned November 10, 1981 in the Federal Logistics Information System (FLIS). NIIN 011218058 was cancelled on December 15, 2017, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.

There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, there are no suppliers 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 4820011218058 does not contain precious metals.

This information was last updated on .


Technical Characteristics

FIRST CONNECTION FACE TO CENTERLINE DISTANCE
(CWCL) 4.250 INCHES
RAISED FACE NOMINAL HEIGHT
(CWDH) 0.062 INCHES 2ND END
FLOW CONTROL DEVICE
(ADQU) DISK
CONNECTION TYPE
(AWLS) THREADED INTERNAL PIPE 1ST END
FLANGE FACE DESIGN
(CWDF) RAISED STRAIGHT 2ND END
END ITEM IDENTIFICATION
(AGAV) CONDENSATE TANK ONBOARD 270 FT WMEC CG VESSELS
BOLT CIRCLE NOMINAL DIAMETER
(CWCT) 4.750 INCHES 2ND END
FIRST CONNECTION FACE TO CENTERLINE DISTANCE
(MATT) COPPER ALLOY SEAT
MATERIAL
(MATT) COPPER ALLOY STEM
THREAD SERIES DESIGNATOR
(THSD) NPT 1ST END
THREAD DIRECTION
(AAJF) RIGHT-HAND 1ST END
RAISED FACE NOMINAL DIAMETER
(CWDL) 4.062 INCHES 2ND END
SECOND
(MATT) COPPER ALLO
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
BOLT HOLE NOMINAL DIAMETER
(CWCQ) 0.625 INCHES 2ND END
VALVE SIZE
(CCFG) 3.000 INCHES
BOLT HOLE QUANTITY
(AECS) 4 2ND END
FLANGE SHAPE
(ARKN) ROUND WITH HOLES 2ND END
MAXIMUM OPERATING TEMP
(AEHZ) 450.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION STYLE
(AHNC) G9 PLAIN,OPTIONAL END(PIPE) 1ST END
CONNECTION STYLE
(AHNC) PLAIN,OPTIONAL END(PIPE) 1ST END
NOMINAL THREAD SIZE
(CQJX) 3.000 INCHES 1ST END
NOMINAL THICKNESS
(CWCK) 0.625 INCHES 2ND END
MATERIAL
(MATT) COPPER ALLOY SEAT
SECOND CONNECTION FACE TO CENTERLINE DISTANCE
(CWCR) 4.375 INCHES
MATERIAL
(MATT) IRON CAST BODY
STYLE DESIGNATOR
(STYL) ANGLE FLANGED ENDS
CONNECTION TYPE
(AWLS) FLANGE 2ND END
NOMINAL OUTSIDE DIAMETER
(CWCD) 6.000 INCHES 2ND END
MATERIAL
(MATT) COPPER ALLOY FLOW CONTROL DEVICE
STYLE DESIGNATOR
(MATT) COPPER ALLOY FLOW CONTROL DEVICE
STYLE DESIGNATOR
(STYL) ERR-090

Manufacturer Part Numbers


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