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NSN 4820-01-274-4726, 4820012744726
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 012744726
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 4820-01-274-4726

National Stock Number (NSN) 4820-01-274-4726, or NIIN 012744726, (valve,safety relief) was assigned March 9, 1988 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 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 a year. There have been 9 contracts issued for this part number, with 9 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7MC22V023T, SPE7M022V1044, SPE7MC21V1638, SPE7MC19V6125, SPE7MC18P3579. The total value of the awarded contracts has been US$ 540,892.62.

This NSN is unique to one weapons system.

There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 319,256. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 20, 2008, 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 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 4820012744726 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

STYLE DESIGNATOR
(STYL) ERR-090
ADJUSTABLE PRESSURE RANGE
(CQCY) +10.0/+12.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE
(CQCY) +10.0 TO 12.0 POUNDS PER SQUARE INCH
BOLT HOLE NOMINAL DIAMETER
(CWCQ) 0.625 INCHES 2ND END
BOLT HOLE NOMINAL DIAMETER
(CWCQ) 0.750 INCHES 1ST END
BOLT HOLE QUANTITY
(AECS) 4 ALL ENDS
BONNET TYPE
(ADSR) INSIDE SCREW
BONNET ATTACHMENT METHOD
(ADST) BOLTED
BOLT CIRCLE NOMINAL DIAMETER
(CWCT) 3.125 INCHES 2ND END
BOLT CIRCLE NOMINAL DIAMETER
(CWCT) 4.750 INCHES 1ST END
CONNECTION TYPE
(AWLS) FLANGE ALL ENDS
FIRST CONNECTION FACE TO CENTERLINE DISTANCE
(CWCL) 4.500 INCHES
FLANGE FACE DESIGN
(CWDF) RAISED STRAIGHT ALL ENDS
FLANGE SHAPE
(ARKN) ROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICE
(ADQU) DISK
NOMINAL THICKNESS
(CWCK) 0.438 INCHES 2ND END
NOMINAL THICKNESS
(CWCK) 0.625 INCHES 1ST END
MATERIAL
(MATT) NICKEL ALLOY FLOW CONTROL DEVICE
MATERIAL
(MATT) NICKEL ALLOY SEAT
MATERIAL
(MATT) STEEL BODY
MATERIAL
(MATT) STEEL STEM
MAXIMUM OPERATING PRESSURE
(CQGM) 275.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP
(AEHZ) 250.0 DEG FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED
(MEDA) WATER-OIL-GAS SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER
(CWCD) 4.250 INCHES 2ND END
NOMINAL OUTSIDE DIAMETER
(CWCD) 6.000 INCHES 1ST END
SECOND CONNECTION FACE TO CENTERLINE DISTANCE
(CWCR) 4.500 INCHES
RAISED FACE NOMINAL DIAMETER
(CWDL) 2.000 INCHES 2ND END
RAISED FACE NOMINAL DIAMETER
(CWDL) 3.625 INCHES 1ST END
RAISED FACE NOMINAL HEIGHT
(CWDH) 0.062 INCHES ALL ENDS
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
VALVE SIZE
(CCFG) 1.000 INCHES
STYLE DESIGNATOR
(STYL) ANGLE FLANGED ENDS


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