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NSN 4820-01-220-8281, 4820012208281
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 012208281
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 4820-01-220-8281

National Stock Number (NSN) 4820-01-220-8281, or NIIN 012208281, (valve,safety relief) was assigned November 20, 1985 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 Aug 02, 2004, this NSN's acquisition method was noted as: Not established. Not established.

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 4820012208281 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

VALVE SIZE
(CCFG) 4.000 INCHES
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
STYLE DESIGNATOR
(STYL) ANGLE FLANGED ENDS
RAISED FACE NOMINAL HEIGHT
(CWDH) 0.062 INCHES ALL ENDS
RAISED FACE NOMINAL DIAMETER
(CWDL) 7.562 INCHES 1ST END
RAISED FACE NOMINAL DIAMETER
(CWDL) 5.312 INCHES 2ND END
MAXIMUM OPERATING TEMP
(AEHZ) 250.0 DEG FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE
(CQGM) 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MATERIAL
(MATT) STEEL CORROSION RESISTING STEM
MATERIAL
(MATT) STEEL CORROSION RESISTING SEAT
MATERIAL
(MATT) STEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIAL
(MATT) STEEL BODY
NOMINAL THICKNESS
(CWCK) 1.000 INCHES 1ST END
NOMINAL THICKNESS
(CWCK) 0.938 INCHES 2ND END
NOMINAL OUTSIDE DIAMETER
(CWCD) 11.000 INCHES 1ST END
NOMINAL OUTSIDE DIAMETER
(CWCD) 9.000 INCHES 2ND END
FLOW CONTROL DEVICE
(ADQU) DISK
FLANGE SHAPE
(ARKN) ROUND WITH HOLES ALL ENDS
FLANGE FACE DESIGN
(CWDF) RAISED STRAIGHT ALL ENDS
FURNISHED ITEMS AND QUANTITY
(TMQY) 1 LEVER
DISK LOADING METHOD
(ADSU) SPRING
CONNECTION TYPE
(AWLS) FLANGE ALL ENDS
BONNET TYPE
(ADSR) INSIDE SCREW
BONNET ATTACHMENT METHOD
(ADST) BOLTED
BOLT HOLE QUANTITY
(AECS) 8 ALL ENDS
BOLT HOLE NOMINAL DIAMETER
(CWCQ) 0.750 INCHES 2ND END
BOLT HOLE NOMINAL DIAMETER
(CWCQ) 0.875 INCHES 1ST END
BOLT CIRCLE NOMINAL DIAMETER
(CWCT) 9.500 INCHES 1ST END
BOLT CIRCLE NOMINAL DIAMETER
(CWCT) 7.500 INCHES 2ND END
ADJUSTABLE PRESSURE RANGE
(CQCY) +108.0/+132.0 POUNDS PER SQUARE INCH
STYLE DESIGNATOR
(STYL) ERR-090

Manufacturer Part Numbers


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