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NSN 4820-00-622-5790, 4820006225790
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 006225790
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 4820-00-622-5790

National Stock Number (NSN) 4820-00-622-5790, or NIIN 006225790, (valve,safety relief) was assigned March 1, 1975 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 9 manufacturer part numbers associated with this NSN. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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 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 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 4820006225790 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

DISK LOADING METHOD
(ADSU) SPRING
CONNECTION STYLE
(AHNC) EXTERNAL SEAT FOR GASKET SEAL (BOSS) 1ST END
CONNECTION TYPE
(AWLS) THREADED EXTERNAL BOSS 1ST END
FLOW CONTROL DEVICE
(ADQU) PISTON
NOMINAL THREAD SIZE
(CQJX) 0.750 INCHES 1ST END
OPENING PRESSURE SETTING
(CSDC) 65.0 POUNDS PER SQUARE INCH
MATERIAL
(MATT) STEEL BODY
MATERIAL
(MATT) STEEL FLOW CONTROL DEVICE
MATERIAL
(MATT) STEEL SEAT
THREAD CLASS
(AAJD) 2A 1ST END
THREAD DIRECTION
(AAJF) RIGHT-HAND 1ST END
THREAD SERIES DESIGNATOR
(THSD) UNF 1ST END
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
STYLE DESIGNATOR
(STYL) ANGLE
STYLE DESIGNATOR
(STYL) ERR-090
CONNECTION STYLE
(AHNC) G50 EXTERNAL SEAT FOR GASKET SEAL (BOSS) 1ST END

Manufacturer Part Numbers

285268AS

RNCC
C
RNVC
1
403092356

RNCC
C
RNVC
1
403092356B

RNCC
5
RNVC
9
B132195

RNCC
C
RNVC
1
403092357

RNCC
5
RNVC
9
403092357B

RNCC
C
RNVC
1
403092358

RNCC
3
RNVC
2
403092358

RNCC
5
RNVC
9
4820006225790

RNCC
5
RNVC
9
667889

RNCC
5
RNVC
2
4820006225790

RNCC
6
RNVC
9

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