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NSN 4820-00-328-8236, 4820003288236
VALVE,RESTRICTOR CHECK

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 003288236
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 4820-00-328-8236

National Stock Number (NSN) 4820-00-328-8236, or NIIN 003288236, (valve,restrictor check) was assigned December 9, 1973 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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 unique to one weapons system.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 25, 2008, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 3, 4 and 5.

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 4820003288236 does not contain precious metals.

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
DISK LOADING METHOD
(ADSU) SPRING
APERTURE DIAMETER
(ABVL) 0.024 INCHES NOMINAL
CONNECTION STYLE
(AHNC) FLARELESS 1ST END
CONNECTION STYLE
(AHNC) FLARELESS 2ND END
CONNECTION TYPE
(AWLS) THREADED EXTERNAL TUBE 2ND END
CONNECTION TYPE
(AWLS) THREADED EXTERNAL TUBE 1ST END
FLOW CONTROL DEVICE
(ADQU) POPPET
MATERIAL
(MATT) STEEL CORROSION RESISTING OVERALL
MAXIMUM OPERATING PRESSURE
(CQGM) 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP
(AEHZ) 275.0 DEG FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED
(MEDA) FUEL/OIL, HYDROCARBON SINGLE RESPONSE
MOUNTING POSITION
(BBJX) HORIZONTAL OR VERTICAL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED
(CWFD) 0.250 INCHES 2ND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED
(CWFD) 0.375 INCHES 1ST END
NOMINAL THREAD SIZE
(CQJX) 0.562 INCHES 1ST END
NOMINAL THREAD SIZE
(CQJX) 0.562 INCHES 2ND END
SEAT ANGLE
(CQRB) 12.0 DEGREES 2ND END
SEAT ANGLE
(CQRB) 12.0 DEGREES 1ST END
THREAD CLASS
(AAJD) 3A 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) 18 1ST END
THREAD SERIES DESIGNATOR
(THSD) UNF 1ST END
THREAD SERIES DESIGNATOR
(THSD) UNF 2ND END
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
STYLE DESIGNATOR
(STYL) STRAIGHT THRU
SURFACE TREATMENT
(SFTT) PASSIVATE

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