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NSN 4820-00-460-6797, 4820004606797
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 004606797
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 4820-00-460-6797

National Stock Number (NSN) 4820-00-460-6797, or NIIN 004606797, (valve,safety relief) was assigned January 19, 1970 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier 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.

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 4820004606797 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) G42 FLARED (TUBE) ALL ENDS
DISK LOADING METHOD
(ADSU) SPRING
CONNECTION STYLE
(AHNC) FLARED (TUBE) ALL ENDS
CONNECTION TYPE
(AWLS) THREADED EXTERNAL TUBE ALL ENDS
FEATURES PROVIDED
(CBBL) PRESSURE TIGHT OUTLET SIDE
FLOW CONTROL DEVICE
(ADQU) POPPET
NOMINAL THREAD SIZE
(CQJX) 0.562 INCHES ALL ENDS
OPENING PRESSURE SETTING
(CSDC) 210.0 POUNDS PER SQUARE INCH
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) AISI 416 ASSN STD SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) AISI 416 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) SAE CA360 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) SAE CA360 ASSN STD SINGLE MATERIAL RESPONSE SEAT
MATERIAL
(MATT) COPPER ALLOY SEAT
MATERIAL
(MATT) COPPER ALLOY BODY
MATERIAL
(MATT) STEEL COMP 416 FLOW CONTROL DEVICE
MATERIAL
(MATT) STEEL COMP 416 STEM
MAXIMUM OPERATING PRESSURE
(CQGM) 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP
(AEHZ) 275.0 DEG FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED
(MEDA) HYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED
(CWFD) 0.375 INCHES ALL ENDS
SEAT ANGLE
(CQRB) 37.0 DEGREES ALL ENDS
THREAD CLASS
(AAJD) 3A ALL ENDS
THREAD DIRECTION
(AAJF) RIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATOR
(THSD) UNF ALL ENDS
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
VALVE DISCHARGE FLOW RATE
(ADSY) 3.5 GALLONS PER MINUTE
STYLE DESIGNATOR
(STYL) STRAIGHT THRU
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENT
(SFTT) ANODIZE
STYLE DESIGNATOR
(STYL) ERR-090

Manufacturer Part Numbers


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