Product Details | VALVE SEAT

4820-00-986-0531 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.20248100015Valves, Powered48200018Valves, Nonpowered

Part Alternates: A1N203, 400203, 4820-00-986-0531, 00-986-0531, 4820009860531, 009860531

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1962 00-986-0531

Drawings & Photos | NSN 4820-00-986-0531


Cross Reference | NSN 4820-00-986-0531

Part Number Cage Code Manufacturer
400203 31949 BROOKS AUTOMATION, INC. DIV CTI CRYOGENICS
A1N203 31949 BROOKS AUTOMATION, INC. DIV CTI CRYOGENICS

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Technical Data | NSN 4820-00-986-0531

Characteristic Specifications
STYLE DESIGNATOR B10 PLAIN FLANGED
FLANGE DIAMETER 0.805 INCHES MINIMUM AND 0.809 INCHES MAXIMUM
BODY OUTSIDE DIAMETER 0.805 INCHES MINIMUM AND 0.809 INCHES MAXIMUM
BODY INSIDE DIAMETER 0.150 INCHES MINIMUM AND 0.166 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT 0.031 INCHES MINIMUM AND 0.047 INCHES MAXIMUM
UNDER FLANGE HEIGHT 0.331 INCHES MINIMUM AND 0.349 INCHES MAXIMUM
HARDNESS RATING NOT RATED
SEATING SURFACE SHAPE ANGULAR
SEAT ANGLE IN DEG 45.000 NOMINAL
MANUFACTURERS CODE 31949
DESIGN CONTROL REFERENCE 400203

Restrictions/Controls & Freight Information | NSN 4820-00-986-0531

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 051080 FAUCETS,BIBCOCKS,GATES VALVES
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 594 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 4820-00-986-0531

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each