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NSN 4820-01-269-9495, 4820012699495
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 012699495
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 4820-01-269-9495

National Stock Number (NSN) 4820-01-269-9495, or NIIN 012699495, (valve,safety relief) was assigned December 24, 1987 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 3 suppliers. Today, 2 suppliers are listed as Active suppliers 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, with the most recent procurement date of Apr 08, 2018. 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: SPE7MC18P3572. The total value of the awarded contracts has been US$ 66,128.75.

This NSN is unique to one weapons system.

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 Apr 09, 2018, 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 4820012699495 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) +23.0/+31.0 POUNDS PER SQUARE INCH
STYLE DESIGNATOR
(STYL) ERR-090
DISK LOADING METHOD
(ADSU) SPRING
ADJUSTABLE PRESSURE RANGE
(CQCY) +23.0 TO 31.0 POUNDS PER SQUARE INCH
BOLT HOLE NOMINAL DIAMETER
(CWCQ) 0.875 INCHES 1ST END
BOLT HOLE NOMINAL DIAMETER
(CWCQ) 0.875 INCHES 2ND END
BOLT HOLE QUANTITY
(AECS) 8 1ST END
BOLT HOLE QUANTITY
(AECS) 8 2ND END
BOLT CIRCLE NOMINAL DIAMETER
(CWCT) 11.750 INCHES 2ND END
BOLT CIRCLE NOMINAL DIAMETER
(CWCT) 9.500 INCHES 1ST END
CONNECTION TYPE
(AWLS) FLANGE 1ST END
CONNECTION TYPE
(AWLS) FLANGE 2ND END
FIRST CONNECTION FACE TO CENTERLINE DISTANCE
(CWCL) 9.625 INCHES
FLANGE FACE DESIGN
(CWDF) RAISED STRAIGHT 1ST END
FLANGE FACE DESIGN
(CWDF) RAISED STRAIGHT 2ND END
FLANGE SHAPE
(ARKN) ROUND WITH HOLES 1ST END
FLANGE SHAPE
(ARKN) ROUND WITH HOLES 2ND END
FLOW CONTROL DEVICE
(ADQU) DISK
NOMINAL THICKNESS
(CWCK) 1.000 INCHES 1ST END
NOMINAL THICKNESS
(CWCK) 1.125 INCHES 2ND END
MATERIAL
(MATT) STEEL BODY
MATERIAL
(MATT) STEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIAL
(MATT) STEEL CORROSION RESISTING STEM
NOMINAL OUTSIDE DIAMETER
(CWCD) 13.500 INCHES 2ND END
NOMINAL OUTSIDE DIAMETER
(CWCD) 11.000 INCHES 1ST END
SECOND CONNECTION FACE TO CENTERLINE DISTANCE
(CWCR) 9.563 INCHES
RAISED FACE NOMINAL DIAMETER
(CWDL) 10.625 INCHES 2ND END
RAISED FACE NOMINAL DIAMETER
(CWDL) 8.500 INCHES 1ST END
RAISED FACE NOMINAL HEIGHT
(CWDH) 0.063 INCHES 1ST END
RAISED FACE NOMINAL HEIGHT
(CWDH) 0.063 INCHES 2ND END
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
VALVE SIZE
(CCFG) 6.000 INCHES
STYLE DESIGNATOR
(STYL) ANGLE FLANGED ENDS


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