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NSN 4820-01-298-4355, 4820012984355
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 012984355
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 4820-01-298-4355

National Stock Number (NSN) 4820-01-298-4355, or NIIN 012984355, (valve,safety relief) was assigned April 16, 1989 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 3 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers 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 11, 2014, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) 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 4820012984355 does not contain precious metals.

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) FLARED (TUBE) 1ST END
CONNECTION STYLE
(AHNC) GASKET SEAL(BOSS) 2ND END
CONNECTION TYPE
(AWLS) THREADED EXTERNAL TUBE 1ST END
CONNECTION TYPE
(AWLS) THREADED INTERNAL BOSS 2ND END
FLOW CONTROL DEVICE
(ADQU) POPPET
NOMINAL THREAD SIZE
(CQJX) 0.438 INCHES ALL ENDS
OPENING PRESSURE SETTING
(CSDC) 100.0 POUNDS PER SQUARE INCH
MATERIAL
(MATT) ALUMINUM ALLOY 2024 BODY
MAXIMUM OPERATING PRESSURE
(CQGM) 2500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP
(AEHZ) 275.0 DEG FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED
(MEDA) HYDRAULIC FLUID, MINERAL BASE 2ND RESPONSE
MEDIA FOR WHICH DESIGNED
(MEDA) WATER, FRESH 3RD RESPONSE
MEDIA FOR WHICH DESIGNED
(MEDA) AIR 1ST RESPONSE
SEAT ANGLE
(CQRB) 37.0 DEGREES 1ST END
THREAD CLASS
(AAJD) 3A 1ST END
THREAD CLASS
(AAJD) 3B 2ND END
THREAD DIRECTION
(AAJF) RIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATOR
(THSD) UNF 2ND END
THREAD SERIES DESIGNATOR
(THSD) UNJF 1ST END
THREAD QUANTITY PER INCH
(CMLP) 20 1ST END
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
STYLE DESIGNATOR
(STYL) STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
CONNECTION STYLE
(AHNC) G4 GASKET SEAL(BOSS) 2ND END
STYLE DESIGNATOR
(STYL) ERR-090
CONNECTION STYLE
(AHNC) G42 FLARED (TUBE) 1ST END

Manufacturer Part Numbers


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