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NSN 4820-00-679-8793, 4820006798793
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 006798793
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 4820-00-679-8793

National Stock Number (NSN) 4820-00-679-8793, or NIIN 006798793, (valve,safety relief) was assigned January 1, 1963 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 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 10, 2014, 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 needed to produce this item from additional sources is not physically available. Valid AMCs: 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 4820006798793 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) ALL ENDS
ADJUSTABLE PRESSURE RANGE
(CQCY) +50.0 TO 450.0 POUNDS PER SQUARE INCH
BONNET ATTACHMENT METHOD
(ADST) INTEGRAL
BONNET TYPE
(ADSR) INSIDE SPRING
CONNECTION STYLE
(AHNC) PLAIN (PIPE) ALL ENDS
CONNECTION TYPE
(AWLS) THREADED EXTERNAL PIPE ALL ENDS
DISK LOADING METHOD
(ADSU) SPRING
FLOW CONTROL DEVICE
(ADQU) PISTON
OPENING PRESSURE SETTING
(CSDC) 90.0 POUNDS PER SQUARE INCH
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) SAE CA360 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL
(MATT) COPPER ALLOY BODY
MATERIAL
(MATT) COPPER ALLOY FLOW CONTROL DEVICE
MATERIAL
(MATT) RUBBER SEAT
MAXIMUM OPERATING PRESSURE
(CQGM) 490.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED
(MEDA) REFRIGERANT 12 SINGLE RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED
(AAAR) 0.250 INCHES 1ST END
NOMINAL THREAD SIZE
(CQJX) 0.250 INCHES ALL ENDS
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
STYLE DESIGNATOR
(STYL) STRAIGHT THRU
THREAD DIRECTION
(AAJF) RIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATOR
(THSD) NPT ALL ENDS
ADJUSTABLE PRESSURE RANGE
(CQCY) +50.0/+450.0 POUNDS PER SQUARE INCH
STYLE DESIGNATOR
(STYL) ERR-090

Manufacturer Part Numbers


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