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NSN 4820-01-162-8894, 4820011628894
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 011628894
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 4820-01-162-8894

National Stock Number (NSN) 4820-01-162-8894, or NIIN 011628894, (valve,safety relief) was assigned September 24, 1983 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.

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 4820011628894 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) ERR-090 2ND END
STYLE DESIGNATOR
(STYL) ERR-090
CONNECTION TYPE
(AWLS) THREADED EXTERNAL BOSS 1ST END
CONNECTION TYPE
(AWLS) THREADED EXTERNAL TUBE 2ND END
CONNECTION STYLE
(AHNC) EXTERNAL SEAT FOR GASKET SEAL (BOSS) 1ST END
CONNECTION STYLE
(AHNC) INVERTED FLARE (TUBE) 2ND END
DISK LOADING METHOD
(ADSU) SPRING
FURNISHED ITEMS AND QUANTITY
(TMQY) 1 FERRULE AND 1 NUT
FLOW CONTROL DEVICE
(ADQU) POPPET
MATERIAL
(MATT) COPPER ALLOY OVERALL
NOMINAL THREAD SIZE
(CQJX) 0.438 INCHES 2ND END
NOMINAL THREAD SIZE
(CQJX) 0.500 INCHES 1ST END
SEAT ANGLE
(CQRB) 12.5 DEGREES 2ND END
STYLE DESIGNATOR
(STYL) ANGLE
THREAD DIRECTION
(AAJF) RIGHT-HAND ALL ENDS
THREAD CLASS
(AAJD) 2A ALL ENDS
THREAD SERIES DESIGNATOR
(THSD) UNF ALL ENDS
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
CONNECTION STYLE
(AHNC) G50 EXTERNAL SEAT FOR GASKET SEAL (BOSS) 1ST END

Manufacturer Part Numbers


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