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NSN 4820-01-448-1419, 4820014481419
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 014481419
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 4820-01-448-1419

National Stock Number (NSN) 4820-01-448-1419, or NIIN 014481419, (valve,safety relief) was assigned August 21, 1997 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 5 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is 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 5 years, with the most recent procurement date of Nov 28, 2014. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7MC15M1480. The total value of the awarded contracts has been US$ 6,615.00.

This NSN is somewhat common among different platforms, belonging to 4 different weapons systems.

There has been very little 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, 2013, 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 4820014481419 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

ADJUSTABLE PRESSURE RANGE
(CQCY) +45.0/+55.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE
(CQCY) +45.0 TO 55.0 POUNDS PER SQUARE INCH
BOLT HOLE NOMINAL DIAMETER
(CWCQ) 0.625 INCHES ALL ENDS
BOLT HOLE QUANTITY
(AECS) 4 ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER
(CWCT) 3.125 INCHES ALL ENDS
CONNECTION TYPE
(AWLS) FLANGE ALL ENDS
FURNISHED ITEMS AND QUANTITY
(TMQY) 1 WRENCH
END ITEM IDENTIFICATION
(AGAV) STRATEGIC SEALIFT CONVERSION SHIPS CLASS
FIRST CONNECTION FACE TO CENTERLINE DISTANCE
(CWCL) 3.500 INCHES
FLANGE FACE DESIGN
(CWDF) RAISED STRAIGHT ALL ENDS
FLANGE SHAPE
(ARKN) ROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICE
(ADQU) DISK
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) ASTM A216 GR WCB ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) ASTM A582 TY 303 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) ASTM A582 TY 303 ASSN STD SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) ASTM A582 TYPE 303 ASSN STD SINGLE MATERIAL RESPONSE SEAT
MATERIAL
(MATT) STEEL BODY
MATERIAL
(MATT) STEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIAL
(MATT) STEEL CORROSION RESISTING SEAT
MATERIAL
(MATT) STEEL CORROSION RESISTING STEM
MAXIMUM OPERATING PRESSURE
(CQGM) 250.0 POUNDS PER SQUARE INCH 2ND RESPONSE
MAXIMUM OPERATING PRESSURE
(CQGM) 285.0 POUNDS PER SQUARE INCH 1ST RESPONSE
MAXIMUM OPERATING TEMP
(AEHZ) 100.0 DEG FAHRENHEIT 1ST RESPONSE
MAXIMUM OPERATING TEMP
(AEHZ) 300.0 DEG FAHRENHEIT 2ND RESPONSE
MOUNTING FACILITY
(AZGM) BRACKET
NOMINAL OUTSIDE DIAMETER
(CWCD) 4.250 INCHES ALL ENDS
NOMINAL THICKNESS
(CWCK) 0.438 INCHES ALL ENDS
RAISED FACE NOMINAL DIAMETER
(CWDL) 2.000 INCHES ALL ENDS
RAISED FACE NOMINAL HEIGHT
(CWDH) 0.062 INCHES ALL ENDS
SECOND CONNECTION FACE TO CENTERLINE DISTANCE
(CWCR) 3.250 INCHES
SPECIAL FEATURES
(FEAT) VALVE CONFORMS TO MIL-V-24332 GRADE A,(EXCEPT DISK,SEAT AND STEM);STAINLESS STEEL TRIM;FLANGE PER ANSI B16.5,150 LB,1 IN.
VALVE SIZE
(CCFG) 1.000 INCHES
VALVE OPERATION METHOD
(AQLR) AUTOMATIC OR MANUAL
STYLE DESIGNATOR
(STYL) ANGLE FLANGED ENDS
STYLE DESIGNATOR
(STYL) ERR-090

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