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NSN 4820-00-042-7888, 4820000427888
VALVE,CHECK

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 000427888
Codification Country
United States
Item Name Code
INC 05487
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 4820-00-042-7888

National Stock Number (NSN) 4820-00-042-7888, or NIIN 000427888, (valve,check) was assigned May 22, 1968 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. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 3 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, with the most recent procurement date of Sep 11, 2017. 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: SPE7MC17P6236. The total value of the awarded contracts has been US$ 392.00.

This NSN is unique to one weapons system.

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) 05487. [A VALVE PERMITTING FLOW IN ONE DIRECTION ONLY. IT DOES NOT HAVE A STEM, EXCEPT WHEN EQUIPPED WITH A LEVER AND WEIGHT AND HAS NO PRESSURE ADJUSTMENT. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN.]. 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 4820000427888 contains an unknown precious metal.

This NSN is associated to Schedule B 8481309000: check valves of materials other than copper, iron or 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

DISK LOADING METHOD
(ADSU) SPRING
CONNECTION STYLE
(AHNC) FLARED (TUBE) 2ND END
CONNECTION STYLE
(AHNC) PLAIN, OPTIONAL END (PIPE) 1ST END
CONNECTION TYPE
(AWLS) THREADED EXTERNAL TUBE 2ND END
CONNECTION TYPE
(AWLS) THREADED INTERNAL PIPE 1ST END
FLOW CONTROL DEVICE
(ADQU) DISK
NOMINAL THREAD SIZE
(CQJX) 0.250 INCHES 1ST END
NOMINAL THREAD SIZE
(CQJX) 0.562 INCHES 2ND END
OFFSET DISTANCE
(ACJN) 0.250 INCHES
MATERIAL
(MATT) ALUMINUM ALLOY BODY
MATERIAL
(MATT) ALUMINUM ALLOY SEAT
MAXIMUM OPERATING PRESSURE
(CQGM) 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MOUNTING POSITION
(BBJX) HORIZONTAL OR VERTICAL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED
(CWFD) 0.375 INCHES 2ND END
NOMINAL PIPE SIZE ACCOMMODATED
(AAAR) 0.250 INCHES 1ST END
SEAT ANGLE
(CQRB) 37.0 DEGREES 2ND END
THREAD CLASS
(AAJD) 3A 2ND END
THREAD DIRECTION
(AAJF) RIGHT-HAND 1ST END
THREAD DIRECTION
(AAJF) RIGHT-HAND 2ND END
THREAD SERIES DESIGNATOR
(THSD) NPT 1ST END
THREAD SERIES DESIGNATOR
(THSD) UNF 2ND END
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
STYLE DESIGNATOR
(STYL) STRAIGHT THRU W/OFFSET

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