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NSN 4820-01-524-9603, 4820015249603
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 015249603
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 4820-01-524-9603

National Stock Number (NSN) 4820-01-524-9603, or NIIN 015249603, (valve,safety relief) was assigned October 22, 2004 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. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. 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.

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

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 10, 2014, 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 4820015249603 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

CONNECTION STYLE
(AHNC) SOCKET ERR-100
DISK LOADING METHOD
(ADSU) SPRING
ADJUSTABLE PRESSURE RANGE
(CQCY) +99.0 TO 111.0 POUNDS PER SQUARE INCH
BONNET TYPE
(ADSR) INSIDE SPRING
BONNET ATTACHMENT METHOD
(ADST) BOLTED
CONNECTION STYLE
(AHNC) SOCKET ALL ENDS
CONNECTION TYPE
(AWLS) UNTHREADED INTERNAL PIPE ALL ENDS
DEPARTURE FROM CITED DOCUMENT
(ZZZW) MODIEFIED BY PSSSN21C-242
FURNISHED ITEMS AND QUANTITY
(TMQY) 1 WRENCH
END ITEM IDENTIFICATION
(AGAV) OHIO CLASS SSN (TRIDENT)
FEATURES PROVIDED
(CBBL) MANUAL OVERRIDE AND PRESSURE TIGHT OUTLET SIDE
FIRST CONNECTION FACE TO CENTERLINE DISTANCE
(CWCL) 5.500 INCHES
FLANGE FACE DESIGN
(CWDF) PLAIN ALL ENDS
FLANGE SHAPE
(ARKN) ROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICE
(ADQU) DISK
NOMINAL PIPE SIZE ACCOMMODATED
(AAAR) 2.500 INCHES ALL ENDS
OPENING PRESSURE SETTING
(CSDC) 110.0 POUNDS PER SQUARE INCH
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) AA-N-288 COMP A FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) MIL-C-20159C MIL SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE AND AMS 3660 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM
MATERIAL
(MATT) COPPER ALLOY 964 BODY
MATERIAL
(MATT) NICKEL ALLOY FLOW CONTROL DEVICE AND PLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICE
MATERIAL
(MATT) NICKEL ALLOY SEAT
MATERIAL
(MATT) NICKEL ALLOY STEM
MAXIMUM OPERATING TEMP
(AEHZ) 122.0 DEG FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE
(CQGM) 120.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED
(MEDA) LIQUID SINGLE RESPONSE
SECOND CONNECTION FACE TO CENTERLINE DISTANCE
(CWCR) 5.500 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCY
(CXCY) RELIEF VALVE TYPE 1771-T
SPECIAL FEATURES
(FEAT) FLANGES IAW MIL-F-20042; INLET FLANGE 250 LB, OUTLET FLANGE 150 LB. WHICH VARY IN THICKNESS (INLET/OUTLET) 15/16 / 1/2 INCHES AND BOLT HOLE SIZE OF 11/16 / 9/16; INLET HAS 4 DRILLED HOLE, 2 TAPPED, OUTLET HAS 6 DRILLED HOLES. LEVER WRENCH IS PROVIDED FOR LIFT CAM; SEAT WRENCH IS NOT PROVIDED
VALVE OPERATION METHOD
(AQLR) AUTOMATIC OR MANUAL
VALVE SIZE
(CCFG) 2.500 INCHES
VALVE DISCHARGE FLOW RATE
(ADSY) 300.0 GALLONS PER MINUTE
SPECIFICATION/STANDARD DATA
(ZZZK) 81349 - MIL-V-24322 GOVERNMENT SPECIFICATION
STYLE DESIGNATOR
(STYL) ANGLE FLANGED ENDS
STYLE DESIGNATOR
(STYL) ERR-090
ADJUSTABLE PRESSURE RANGE
(CQCY) +99.0/+111.0 POUNDS PER SQUARE INCH

Manufacturer Part Numbers


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