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NSN 4820-00-497-7445, 4820004977445
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 004977445
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 4820-00-497-7445

National Stock Number (NSN) 4820-00-497-7445, or NIIN 004977445, (valve,safety relief) was assigned July 2, 1971 in the Federal Logistics Information System (FLIS). NIIN 004977445 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 is only one manufacturer part number associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers 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 4820004977445 does not contain precious metals.

This information was last updated on .


Technical Characteristics

VALVE OPERATION METHOD
(AQLR) AUTOMATIC
MATERIAL
(MATT) ALUMINUM ALLOY BODY
DISK LOADING METHOD
(ADSU) SPRING
FEATURES PROVIDED
(CBBL) VALVE STEM LOCK SHIELD AND PRESSURE TIGHT OUTLET SIDE
MATERIAL
(MATT) STEEL CORROSION RESISTING SEAT
OPENING PRESSURE SETTING
(CSDC) 3000.0 POUNDS PER SQUARE INCH
FLOW CONTROL DEVICE
(ADQU) POPPET

Manufacturer Part Numbers


Related Inventory

MC8405-1
4820004977445
Condition NS
VALVE
Readily Available


 
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