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NSN 4820-01-490-4979, 4820014904979
VALVE,CHECK

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 014904979
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 4820-01-490-4979

National Stock Number (NSN) 4820-01-490-4979, or NIIN 014904979, (valve,check) was assigned September 28, 2001 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN. ISO Group has a strong supply network for this NSN, with 23 sources of supply.

This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Apr 06, 2013. There have been 7 contracts issued for this part number, with 7 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPM7M113MV969, SPM7MC13M3050, SPM7M112VA374, SPM7M112VA374, SPM7M212M4625. The total value of the awarded contracts has been US$ 30,852.15.

There has been a small amount of 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 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is controlled by QPL procedures. Valid AMCs: 1 and 2.

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 4820014904979 does not contain precious metals.

This information was last updated on .


Technical Characteristics

THREAD QUANTITY PER INCH
(CMLP) 20 ALL ENDS
THREAD CLASS
(AAJD) 3A ALL ENDS
THREAD DIRECTION
(AAJF) RIGHT-HAND ALL ENDS
MEDIA FOR WHICH DESIGNED
(MEDA) HYDRAULIC FLUID, SILICATE-ESTER BASE 2ND RESPONSE
CONNECTION TYPE
(AWLS) THREADED EXTERNAL TUBE ALL ENDS
MATERIAL
(MATT) STEEL CORROSION RESISTING BODY
MATERIAL
(MATT) STEEL CORROSION RESISTING SEAT
FLOW CONTROL DEVICE
(ADQU) DISK
OPENING PRESSURE SETTING
(CSDC) 5.0 POUNDS PER SQUARE INCH
STYLE DESIGNATOR
(STYL) STRAIGHT THRU
CONNECTION STYLE
(AHNC) FLARED (TUBE) ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED
(CWFD) 0.250 INCHES ALL ENDS
MAXIMUM OPERATING PRESSURE
(CQGM) 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
DISK LOADING METHOD
(ADSU) SPRING
MAXIMUM OPERATING TEMP
(AEHZ) 450.0 DEG FAHRENHEIT SINGLE RESPONSE
MOUNTING POSITION
(BBJX) HORIZONTAL
MEDIA FOR WHICH DESIGNED
(MEDA) HYDRAULIC FLUID, PHOSPHATE-ESTER BASE 1ST RESPONSE
SEAT ANGLE
(CQRB) 37.0 DEGREES ALL ENDS
SPECIAL FEATURES
(FEAT) TORQUE ON -4 SIZE IS 125 +/-10 INCH POUNDS,MIL-H-8891 FLUID COMPATABLE.
NOMINAL THREAD SIZE
(CQJX) 0.437 INCHES ALL ENDS
MEDIA FOR WHICH DESIGNED
(MEDA) FUEL/OIL, HYDROCARBON 3RD RESPONSE
THREAD SERIES DESIGNATOR
(THSD) UNF ALL ENDS

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