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NSN 4820-00-955-5968, 4820009555968
Cancelled -> Replaced by 4820004444656

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 009555968
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 4820-00-955-5968

National Stock Number (NSN) 4820-00-955-5968, or NIIN 009555968, (valve,safety relief) was assigned January 1, 1960 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4820004444656.

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, with the most recent procurement date of Dec 19, 2018. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7MC19P1621. The total value of the awarded contracts has been US$ 1,605.00.

This NSN is somewhat common among different platforms, belonging to 9 different weapons systems.

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. 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 4820009555968 contains an unknown precious metal.

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) G4 GASKET SEAL(BOSS) 2ND END
CONNECTION STYLE
(AHNC) G42 FLARED (TUBE) 1ST END
STYLE DESIGNATOR
(STYL) ERR-090
DISK LOADING METHOD
(ADSU) SPRING
END ITEM IDENTIFICATION
(AGAV) GRUMMIN AEROSPACE A10 AIRCRAFT
CONNECTION STYLE
(AHNC) FLARED (TUBE) 1ST END
CONNECTION STYLE
(AHNC) GASKET SEAL(BOSS) 2ND END
CONNECTION TYPE
(AWLS) THREADED EXTERNAL TUBE 1ST END
CONNECTION TYPE
(AWLS) THREADED INTERNAL BOSS 2ND END
FEATURES PROVIDED
(CBBL) PRESSURE TIGHT OUTLET SIDE
FLOW CONTROL DEVICE
(ADQU) DISK
OPENING PRESSURE SETTING
(CSDC) 50.0 POUNDS PER SQUARE INCH
MATERIAL
(MATT) STEEL OVERALL
MAXIMUM OPERATING PRESSURE
(CQGM) 1000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED
(CWFD) 1.500 INCHES 1ST END
NOMINAL THREAD SIZE
(CQJX) 1.875 INCHES 1ST END
NOMINAL THREAD SIZE
(CQJX) 1.875 INCHES 2ND END
SEAT ANGLE
(CQRB) 37.0 DEGREES 1ST END
THREAD CLASS
(AAJD) 2B 2ND END
THREAD CLASS
(AAJD) 3A 1ST END
THREAD DIRECTION
(AAJF) RIGHT-HAND 1ST END
THREAD DIRECTION
(AAJF) RIGHT-HAND 2ND END
THREAD QUANTITY PER INCH
(CMLP) 12 2ND END
THREAD QUANTITY PER INCH
(CMLP) 12 1ST END
THREAD SERIES DESIGNATOR
(THSD) UN 1ST END
THREAD SERIES DESIGNATOR
(THSD) UN 2ND END
VALVE DISCHARGE FLOW RATE
(ADSY) 45.0 GALLONS PER MINUTE
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
STYLE DESIGNATOR
(STYL) STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.

Manufacturer Part Numbers


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