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NSN 4820-00-683-8922, 4820006838922
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 006838922
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 4820-00-683-8922

National Stock Number (NSN) 4820-00-683-8922, or NIIN 006838922, (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 2 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, only one supplier is 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 4820006838922 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

BONNET ATTACHMENT METHOD
(ADST) THREADED
BONNET TYPE
(ADSR) INSIDE SPRING
CONNECTION TYPE
(AWLS) THREADED EXTERNAL PIPE 1ST END
CONNECTION STYLE
(AHNC) PLAIN (PIPE) 1ST END
DISK LOADING METHOD
(ADSU) SPRING
FEATURES PROVIDED
(CBBL) VALVE STEM LOCK SHIELD
FLOW CONTROL DEVICE
(ADQU) DISK
MATERIAL
(MATT) COPPER ALLOY BODY
MATERIAL
(MATT) COPPER ALLOY AND PLASTIC POLYAMIDE (NYLON) FLOW CONTROL DEVICE
MATERIAL
(MATT) COPPER ALLOY SEAT
MAXIMUM OPERATING PRESSURE
(CQGM) 500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED
(MEDA) AIR SINGLE RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED
(AAAR) 0.250 INCHES 1ST END
NOMINAL THREAD SIZE
(CQJX) 0.250 INCHES 1ST END
OPENING PRESSURE SETTING
(CSDC) 475.0 POUNDS PER SQUARE INCH
STYLE DESIGNATOR
(STYL) ANGLE
THREAD DIRECTION
(AAJF) RIGHT-HAND 1ST END
THREAD SERIES DESIGNATOR
(THSD) NPT 1ST END
VALVE OPERATION METHOD
(AQLR) AUTOMATIC OR MANUAL
MATERIAL
(MATT) COPPER ALLOY FLOW CONTROL DEVICE AND PLASTIC POLYAMIDE FLOW CONTROL DEVICE
STYLE DESIGNATOR
(STYL) ERR-090
CONNECTION STYLE
(AHNC) G46B PLAIN (PIPE) 1ST END

Manufacturer Part Numbers


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