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NSN 4820-01-214-7972, 4820012147972
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 012147972
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 4820-01-214-7972

National Stock Number (NSN) 4820-01-214-7972, or NIIN 012147972, (valve,safety relief) was assigned August 15, 1985 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 2 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 been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 11 contracts issued for this part number, with 11 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE7MC24P2131, SPE7MC23P1195, SPE7M022P1230, SPE7M022P1230, SPE7M122V1619. The total value of the awarded contracts has been US$ 918,757.98.

This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.

There has been a small amount of 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 Jun 23, 2010, 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 4820012147972 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) +12.0 TO 59.0 POUNDS PER SQUARE INCH
BOLT HOLE NOMINAL DIAMETER
(CWCQ) 0.562 INCHES 2ND END
BOLT HOLE NOMINAL DIAMETER
(CWCQ) 0.750 INCHES 1ST END
BOLT HOLE QUANTITY
(AECS) 4 ALL ENDS
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) 3.469 INCHES
FLANGE FACE DESIGN
(CWDF) RAISED STRAIGHT ALL ENDS
FLANGE SHAPE
(ARKN) ROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICE
(ADQU) DISK
MATERIAL
(MATT) STEEL COMP 304L FLOW CONTROL DEVICE
MATERIAL
(MATT) STEEL COMP 304L SEAT
MATERIAL
(MATT) STEEL COMP 316 BODY
NOMINAL OUTSIDE DIAMETER
(CWCD) 4.250 INCHES 2ND END
NOMINAL OUTSIDE DIAMETER
(CWCD) 6.000 INCHES 1ST END
NOMINAL THICKNESS
(CWCK) 0.562 INCHES 2ND END
NOMINAL THICKNESS
(CWCK) 0.750 INCHES 1ST END
RAISED FACE NOMINAL DIAMETER
(CWDL) 1.938 INCHES 2ND END
RAISED FACE NOMINAL DIAMETER
(CWDL) 3.062 INCHES 1ST END
RAISED FACE NOMINAL HEIGHT
(CWDH) 0.062 INCHES ALL ENDS
SECOND CONNECTION FACE TO CENTERLINE DISTANCE
(CWCR) 3.625 INCHES
VALVE OPERATION METHOD
(AQLR) AUTOMATIC OR MANUAL
VALVE SIZE
(CCFG) 1.000 INCHES
STYLE DESIGNATOR
(STYL) ANGLE FLANGED ENDS
STYLE DESIGNATOR
(STYL) ERR-090
ADJUSTABLE PRESSURE RANGE
(CQCY) +12.0/+59.0 POUNDS PER SQUARE INCH


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