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NSN 4820-01-079-9011, 4820010799011
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 010799011
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 4820-01-079-9011

National Stock Number (NSN) 4820-01-079-9011, or NIIN 010799011, (valve,safety relief) was assigned July 16, 1979 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. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 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.

This NSN is unique to one weapons system.

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: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) 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 4820010799011 contains an unknown precious metal.

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) +35.0/+44.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE
(CQCY) +35.0 TO 44.0 POUNDS PER SQUARE INCH
BOLT CIRCLE NOMINAL DIAMETER
(CWCT) 2.380 INCHES ALL ENDS
BOLT HOLE NOMINAL DIAMETER
(CWCQ) 0.620 INCHES ALL ENDS
BOLT HOLE QUANTITY
(AECS) 4 ALL ENDS
BONNET ATTACHMENT METHOD
(ADST) BOLTED
BONNET TYPE
(ADSR) INSIDE SPRING
CONNECTION TYPE
(AWLS) FLANGE ALL ENDS
DISK LOADING METHOD
(ADSU) SPRING
FACE TO FACE DISTANCE
(CWCF) 3.344 INCHES
FIRST CONNECTION FACE TO CENTERLINE DISTANCE
(CWCL) 3.344 INCHES
FLANGE FACE DESIGN
(CWDF) RAISED WITH CURVE AND RADIUS ALL ENDS
FLANGE SHAPE
(ARKN) ROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICE
(ADQU) DISK
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) ASTM A351,GRADE CF8 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE STEM
MATERIAL
(MATT) STEEL BODY
MATERIAL
(MATT) STEEL FLOW CONTROL DEVICE
MATERIAL
(MATT) STEEL SEAT
MATERIAL
(MATT) STEEL STEM
MAXIMUM OPERATING TEMP
(AEHZ) 100.0 FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE
(CQGM) 275.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED
(MEDA) GAS, NATURAL SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER
(CWCD) 3.500 INCHES ALL ENDS
NOMINAL THICKNESS
(CWCK) 0.440 INCHES ALL ENDS
RAISED FACE NOMINAL DIAMETER
(CWDL) 1.190 INCHES ALL ENDS
RAISED FACE NOMINAL HEIGHT
(CWDH) 0.180 INCHES ALL ENDS
SECOND CONNECTION FACE TO CENTERLINE DISTANCE
(CWCR) 3.250 INCHES
STYLE DESIGNATOR
(STYL) ANGLE FLANGED ENDS
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
VALVE SIZE
(CCFG) 0.500 INCHES
STYLE DESIGNATOR
(STYL) ERR-090
MAXIMUM OPERATING TEMP
(AEHZ) 100.0 DEG FAHRENHEIT SINGLE RESPONSE

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