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NSN 4820-00-399-2553, 4820003992553
SEAT,VALVE

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 003992553
Codification Country
United States
Item Name Code
INC 22113
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.
Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS® Summary

National Stock Number 4820-00-399-2553

National Stock Number (NSN) 4820-00-399-2553, or NIIN 003992553, (seat,valve) was assigned January 1, 1963 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. One 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 5 years, with the most recent procurement date of Apr 09, 2018. There have been 8 contracts issued for this part number, with 8 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 5 different suppliers. The last contract numbers awarded were: SPE7MC18V5610, SPE7MC16V1263, SPE7MC16V1263, SPE7M915V0229, SPM7M512V4984. The total value of the awarded contracts has been US$ 22,903.08.

This NSN is fairly common among different weapons systems, belonging to 17 different platforms.

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 Sep 05, 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 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) 22113. [A REPLACEABLE ITEM DESIGNED TO PROVIDE A STATIONARY SEATING SURFACE FOR A MATING, MOVEABLE ITEM SUCH AS A VALVE DISK OR THE LIKE. THE BODY MAY HAVE A FLANGE OF VARIOUS SHAPES. FOR DIESEL AND GASOLINE RECIPROCATING ENGINES, SEE INSERT, ENGINE VALVE SEAT.]. 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 4820003992553 contains an unknown precious metal.

This NSN is associated to Schedule B 8481909090: parts of taps, cocks, valves and similar appliances, nesoi. 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

ERR DEFAULT
(AASA) 0.400 INCHES NOMINAL SINGLE THREADED PORTION
BODY INSIDE DIAMETER
(ADAS) 0.375 INCHES NOMINAL
FLANGE DIAMETER
(ABKK) 1.750 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT
(AJRF) 0.219 INCHES NOMINAL
MATERIAL
(MATT) NICKEL ALLOY OVERALL
NOMINAL THREAD SIZE
(CQJX) 2.375 INCHES SINGLE THREADED PORTION
SEAT ANGLE IN DEG
(AJSG) 45.000 NOMINAL
SEATING SURFACE SHAPE
(CQKM) ANGULAR
STYLE DESIGNATOR
(STYL) THREADED FLANGED
THREAD CLASS
(AAJD) 2A SINGLE THREADED PORTION
THREAD LENGTH
(AASA) 0.400 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATOR
(THSD) UNF SINGLE THREADED PORTION
UNDER FLANGE HEIGHT
(AJRM) 0.530 INCHES NOMINAL

Manufacturer Part Numbers


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