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NSN 4820-00-916-7440, 4820009167440
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 009167440
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 4820-00-916-7440

National Stock Number (NSN) 4820-00-916-7440, or NIIN 009167440, (valve,safety relief) was assigned July 13, 1966 in the Federal Logistics Information System (FLIS). NIIN 009167440 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. None of the associated 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, 2 suppliers 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 4820009167440 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

OPENING PRESSURE SETTING
(CSDC) 115.0 POUNDS PER SQUARE INCH
SPECIAL FEATURES
(FEAT) NONADJUSTABLE,SEALED
THREAD CLASS
(AAJD) 3A 1ST END
MAXIMUM OPERATING TEMP
(AEHZ) 275.0 DEG FAHRENHEIT SINGLE RESPONSE
DISK LOADING METHOD
(ADSU) SPRING
CONNECTION TYPE
(AWLS) THREADED EXTERNAL TUBE 1ST END
STYLE DESIGNATOR
(STYL) ANGLE
CONNECTION STYLE
(AHNC) G42 FLARED (TUBE) 1ST END
SEAT ANGLE
(CQRB) 37.0 DEGREES 1ST END
FEATURES PROVIDED
(CBBL) PRESSURE TIGHT OUTLET SIDE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED
(CWFD) 0.375 INCHES 1ST END
CONNECTION STYLE
(AHNC) FLARED (TUBE) 1ST END
THREAD DIRECTION
(AAJF) RIGHT-HAND 1ST END
THREAD QUANTITY PER INCH
(CMLP) 18 1ST END
NOMINAL THREAD SIZE
(CQJX) 0.562 INCHES 1ST END
THREAD SERIES DESIGNATOR
(THSD) UNF 1ST END
MAXIMUM OPERATING PRESSURE
(CQGM) 130.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
STYLE DESIGNATOR
(STYL) ERR-090
FLOW CONTROL DEVICE
(ADQU) DISK

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