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NSN 4820-01-171-9440, 4820011719440
VALVE,RESTRICTOR CHECK

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 011719440
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 4820-01-171-9440

National Stock Number (NSN) 4820-01-171-9440, or NIIN 011719440, (valve,restrictor check) was assigned February 15, 1984 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. ISO Group has several sources of supply for this NSN.

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 Jul 13, 2016, this NSN's acquisition method was noted as: Not established. Not established.

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 4820011719440 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

VALVE DISCHARGE FLOW RATE
(ADSY) 24.0 GALLONS PER MINUTE
UNABLE TO DECODE
(ADSY) UNABLE TO DECODE
MAXIMUM OPERATING TEMP
(AEHZ) 275.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION TYPE
(AWLS) THREADED EXTERNAL BOSS ALL ENDS
CONNECTION STYLE
(AHNC) EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
FLOW CONTROL DEVICE
(ADQU) POPPET
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) QQ-S-763 CL 440C FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL
(MATT) STEEL COMP 440C FLOW CONTROL DEVICE
MATERIAL
(MATT) STEEL COMP 630 BODY
MAXIMUM OPERATING TEMP
(AEHZ) 275.0 FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE
(CQGM) 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MOUNTING POSITION
(BBJX) HORIZONTAL
NOMINAL THREAD SIZE
(CQJX) 1.0625 INCHES ALL ENDS
SPECIAL FEATURES
(FEAT) HYDRAULIC FLUID MEDIA
STYLE DESIGNATOR
(STYL) STRAIGHT THRU
THREAD DIRECTION
(AAJF) RIGHT-HAND ALL ENDS
THREAD CLASS
(AAJD) 3A ALL ENDS
THREAD SERIES DESIGNATOR
(THSD) UNJ ALL ENDS
THREAD QUANTITY PER INCH
(CMLP) 12 ALL ENDS
VALVE OPERATION METHOD
(AQLR) AUTOMATIC

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