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NSN 4820-01-088-0344, 4820010880344
VALVE,RESTRICTOR CHECK

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 010880344
Codification Country
United States
Item Name Code
INC 20520
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 4820-01-088-0344

National Stock Number (NSN) 4820-01-088-0344, or NIIN 010880344, (valve,restrictor check) was assigned January 4, 1980 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. 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) 20520. [A VALVE HAVING AN ORIFICE IN THE POPPET, DISK, OR THE LIKE, TO PERMIT RESTRICTED FLUID FLOW WHEN THE VALVE IS SEATED. IT DOES NOT HAVE A STEM OR PROVISIONS FOR PRESSURE ADJUSTMENTS, AND IS SIMILAR TO A VALVE, CHECK WITH THE EXCEPTION OF THE ORIFICE WHICH PERMITS FLUID FLOW IN MORE THAN ONE DIRECTION.]. 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 4820010880344 contains an unknown precious metal.

This NSN is associated to Schedule B 8481302090: check valves of steel. 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

UNABLE TO DECODE
(ABVL) UNABLE TO DECODE
APERTURE DIAMETER
(ABVL) 0.250 INCHES NOMINAL
CONNECTION TYPE
(AWLS) THREADED EXTERNAL TUBE 1ST END
CONNECTION STYLE
(AHNC) FLARED (TUBE) 1ST END
DISK LOADING METHOD
(ADSU) SPRING
FLOW CONTROL DEVICE
(ADQU) DISK
MATERIAL
(MATT) STEEL CORROSION RESISTING OVERALL
MOUNTING POSITION
(BBJX) HORIZONTAL OR VERTICAL
NOMINAL THREAD SIZE
(CQJX) 0.562 INCHES 1ST END
SEAT ANGLE
(CQRB) 30.0 DEGREES 1ST END
STYLE DESIGNATOR
(STYL) ANGLE
THREAD CLASS
(AAJD) 2A 1ST END
THREAD DIRECTION
(AAJF) RIGHT-HAND 1ST END
THREAD SERIES DESIGNATOR
(THSD) UNF 1ST END
VALVE OPERATION METHOD
(AQLR) AUTOMATIC

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