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NSN 4820-00-184-9182, 4820001849182
VALVE,STOP-CHECK

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 001849182
Codification Country
United States
Item Name Code
INC 05486
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 4820-00-184-9182

National Stock Number (NSN) 4820-00-184-9182, or NIIN 001849182, (valve,stop-check) was assigned March 10, 1971 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN. ISO Group has several sources of supply for this NSN.

This part number has not been procured by the US Government in over a year. There have been 10 contracts issued for this part number, with 10 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE7M323P2457, SPE7M323P1949, SPE7MC22P2073, SPE7MC22P2073, SPE7MC21P1494. The total value of the awarded contracts has been US$ 244,466.43.

This NSN is somewhat common among different platforms, belonging to 10 different weapons systems.

There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 33,190. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 05486. [A VALVE WITH A BOLT OR STEM THAT MAY BE MECHANICALLY ACTUATED TO TWO DIFFERENT POSITIONS BY ROTARY OR LINEAR MOTION. IN THE FIRST POSITION, THE VALVE DISK IS LOCATED AND LOCKED AGAINST THE SEAT PERMITTING NO FLUID FLOW THROUGH THE VALVE. IN THE SECOND POSITION, ONE SIDE OF THE VALVE DISK IS LOCATED AGAINST THE SEAT PERMITTING MOVEMENT OF THE DISK IN A MANNER THAT WILL ALLOW A FLOW OF FLUID IN ONE DIRECTION THROUGH THE VALVE. THE VALVE DISK MAY BE SPRING LOADED. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN. SEE ALSO VALVE (1), LIFT-CHECK AND VALVE (1), STOP-LIFT-CHECK.]. 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 4820001849182 contains an unknown precious metal.

This NSN is associated to Schedule B 8481301010: check valves of copper having a pressure rating under 850 kpa. 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

MAXIMUM OPERATING TEMP
(AEHZ) 425.0 DEG FAHRENHEIT SINGLE RESPONSE
BOLT HOLE NOMINAL DIAMETER
(CWCQ) 0.687 INCHES ALL ENDS
BOLT HOLE QUANTITY
(AECS) 14 ALL ENDS
BONNET ATTACHMENT METHOD
(ADST) BOLTED
BONNET TYPE
(ADSR) OUTSIDE SCREW-YOKE
BOLT CIRCLE NOMINAL DIAMETER
(CWCT) 11.062 INCHES ALL ENDS
CONNECTION TYPE
(AWLS) FLANGE ALL ENDS
FIRST CONNECTION FACE TO CENTERLINE DISTANCE
(CWCL) 9.750 INCHES
FLANGE FACE DESIGN
(CWDF) PLAIN ALL ENDS
FLANGE SHAPE
(ARKN) ROUND WITH HOLES 1ST END
FLOW CONTROL DEVICE
(ADQU) DISK
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) MIL-N-894. CLASS 6 CANCELED MIL SPEC SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) MIL-N-894. CLASS B-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) MIL-N-894,CLASS B-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) QQ-C-390, ALLOY D4 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL
(MATT) COPPER ALLOY 922 BODY
MATERIAL
(MATT) NICKEL ALLOY R-405 SEAT
MATERIAL
(MATT) NICKEL ALLOY R-405 STEM
MATERIAL
(MATT) NICKEL ALLOY R-405 FLOW CONTROL DEVICE
MAXIMUM OPERATING PRESSURE
(CQGM) 100.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP
(AEHZ) 425.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED
(MEDA) STEAM SINGLE RESPONSE
MOUNTING POSITION
(BBJX) VERTICAL
NOMINAL OUTSIDE DIAMETER
(CWCD) 12.375 INCHES ALL ENDS
NOMINAL THICKNESS
(CWCK) 0.625 INCHES ALL ENDS
RENEWABLE SEAT RING TYPE
(ADZH) THREADED
SECOND CONNECTION FACE TO CENTERLINE DISTANCE
(CWCR) 9.750 INCHES
VALVE OPERATION METHOD
(AQLR) MANUAL
VALVE SIZE
(CCFG) 8.000 INCHES
STYLE DESIGNATOR
(STYL) ANGLE FLANGED ENDS
TEST DATA DOCUMENT
(TEST) 03950-882032968 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).

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