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NSN 4820-01-020-4709, 4820010204709
Cancelled -> Replaced by 4820009876501

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 010204709
Codification Country
United States
Item Name Code
INC 05488
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 4820-01-020-4709

National Stock Number (NSN) 4820-01-020-4709, or NIIN 010204709, (valve,safety relief) was assigned April 30, 1976 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4820009876501.

There are 10 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 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 a year. There have been 26 contracts issued for this part number, with 26 awards given. There is heavy competition for this NSN. The US Government has awarded contracts to 14 different suppliers. The last contract numbers awarded were: SPE7MC24V5659, SPE7MC23V6076, SPE7MC23P1749, SPE7MC23P1744, SPE7MC20V5081. The total value of the awarded contracts has been US$ 220,783.67.

This NSN is fairly common among different weapons systems, belonging to 17 different platforms.

There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 861. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) 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) 05488. [A VALVE DESIGNED TO AUTOMATICALLY RELEASE EXCESSIVE PRESSURES. IT IS ACTUATED BY STATIC PRESSURE UPSTREAM OF THE VALVE AND IS USED AS A SAFETY VALVE OR RELIEF VALVE, AND MAY BE SET TO CLOSE AT A PREDETERMINED PRESSURE. IT IS NOT DESIGNED FOR REGULATION OF CONTINUOUSLY FLUCTUATING LOADS. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN. EXCLUDES:VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.]. 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 4820010204709 contains an unknown precious metal.

This NSN is associated to Schedule B 8481400000: safety or relief valves. 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

CONNECTION STYLE
(AHNC) G46B PLAIN (PIPE) 2ND END
BONNET ATTACHMENT METHOD
(ADST) INTEGRAL
BONNET TYPE
(ADSR) INSIDE SPRING
CONNECTION TYPE
(AWLS) THREADED EXTERNAL PIPE 2ND END
CONNECTION TYPE
(AWLS) THREADED INTERNAL PIPE 1ST END
CONNECTION STYLE
(AHNC) PLAIN (PIPE) 2ND END
CONNECTION STYLE
(AHNC) PLAIN,OPTIONAL END(PIPE) 1ST END
DISK LOADING METHOD
(ADSU) SPRING
FLOW CONTROL DEVICE
(ADQU) POPPET
MATERIAL
(MATT) COPPER ALLOY BODY
MATERIAL
(MATT) COPPER ALLOY OR PLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICE
MATERIAL
(MATT) COPPER ALLOY SEAT
MATERIAL
(MATT) COPPER ALLOY STEM
NOMINAL PIPE SIZE ACCOMMODATED
(AAAR) 0.750 INCHES 1ST END
NOMINAL PIPE SIZE ACCOMMODATED
(AAAR) 0.750 INCHES 2ND END
NOMINAL THREAD SIZE
(CQJX) 0.750 INCHES 2ND END
NOMINAL THREAD SIZE
(CQJX) 0.750 INCHES 1ST END
OPENING PRESSURE SETTING
(CSDC) 55.0 POUNDS PER SQUARE INCH
STYLE DESIGNATOR
(STYL) ANGLE
SURFACE TREATMENT
(SFTT) CHROMIUM
THREAD DIRECTION
(AAJF) RIGHT-HAND 1ST END
THREAD DIRECTION
(AAJF) RIGHT-HAND 2ND END
THREAD SERIES DESIGNATOR
(THSD) NPT 2ND END
THREAD SERIES DESIGNATOR
(THSD) NPT 1ST END
VALVE OPERATION METHOD
(AQLR) AUTOMATIC OR MANUAL
MATERIAL
(MATT) COPPER ALLOY FLOW CONTROL DEVICE OR PLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICE
STYLE DESIGNATOR
(STYL) ERR-090
CONNECTION STYLE
(AHNC) G9 PLAIN,OPTIONAL END(PIPE) 1ST END

Manufacturer Part Numbers


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