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NSN 4820-01-197-3710, 4820011973710
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 011973710
Codification Country
United States
Item Name Code
INC 05488
Criticality
(Y) This item does not have a nuclear hardened feature but does have other critical feature(s) 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.
Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS® Summary

National Stock Number 4820-01-197-3710

National Stock Number (NSN) 4820-01-197-3710, or NIIN 011973710, (valve,safety relief) was assigned December 20, 1984 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 6 manufacturer part numbers associated with this NSN. 4 of those 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 3 contracts issued for this part number, with 3 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: SPE7M020P1516, SPM7MC13V2350, SPM7M212M5353. The total value of the awarded contracts has been US$ 10,358.00.

This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.

There has been very little 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 Apr 25, 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 but does have other critical feature(s) 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 4820011973710 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
DISK LOADING METHOD
(ADSU) SPRING
ADJUSTABLE PRESSURE RANGE
(CQCY) +30.0 TO 50.0 POUNDS PER SQUARE INCH
BONNET ATTACHMENT METHOD
(ADST) UNION
BONNET TYPE
(ADSR) INSIDE SPRING
CONNECTION STYLE
(AHNC) SOCKET WITH BRAZING RING ALL ENDS
CONNECTION TYPE
(AWLS) UNTHREADED INTERNAL PIPE ALL ENDS
CRITICALITY CODE JUSTIFICATION
(CRTL) FEAT
FURNISHED ITEMS AND QUANTITY
(TMQY) 1 LEVER
END ITEM IDENTIFICATION
(AGAV) OLIVER HAZARD PERRY CLASS FFG
FLOW CONTROL DEVICE
(ADQU) DISK
NOMINAL PIPE SIZE ACCOMMODATED
(AAAR) 1.500 INCHES ALL ENDS
MATERIAL
(MATT) COPPER ALLOY 922 BODY
MATERIAL
(MATT) NICKEL ALLOY SEAT
MATERIAL
(MATT) NICKEL ALLOY STEM
MATERIAL
(MATT) RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
MAXIMUM OPERATING PRESSURE
(CQGM) 400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP
(AEHZ) 180.0 DEG FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED
(MEDA) WATER, SALT SINGLE RESPONSE
RENEWABLE SEAT RING TYPE
(ADZH) BOLTED
SPECIAL FEATURES
(FEAT) WEAPON SYSTEM ESSENTIAL
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
STYLE DESIGNATOR
(STYL) ANGLE
ADJUSTABLE PRESSURE RANGE
(CQCY) +30.0/+50.0 POUNDS PER SQUARE INCH

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