Product Details | VALVE SEAT

4820-01-190-5891 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: A49529MEB, D50092, D50092 ITEM 4, D50092ITEM4, 4820-01-190-5891, 01-190-5891, 4820011905891, 011905891

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 28 SEP 1984 01-190-5891

Drawings & Photos | NSN 4820-01-190-5891


Demand History | NSN 4820-01-190-5891

Part Number Request Date QTY Origin
A49529MEB 2024-11-312 5 DIBBS
D50092 ITEM 4 2024-11-312 5 DIBBS
4820-01-190-5891 2016-06-166 6 DIBBS

Cross Reference | NSN 4820-01-190-5891

Part Number Cage Code Manufacturer
A49529MEB 34889 HUNT VALVE COMPANY INC DBA UNION FLONETICS
D50092 34889 HUNT VALVE COMPANY INC DBA UNION FLONETICS
D50092 ITEM 4 34889 HUNT VALVE COMPANY INC DBA UNION FLONETICS

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Technical Data | NSN 4820-01-190-5891

Characteristic Specifications
STYLE DESIGNATOR B1 THREADED FLANGED
FLANGE DIAMETER 4.000 INCHES NOMINAL
BODY INSIDE DIAMETER 2.969 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT 0.593 INCHES NOMINAL
UNDER FLANGE HEIGHT 0.688 INCHES NOMINAL
MATERIAL STEEL CORROSION RESISTING OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION ASTM A351/CF8M ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING NOT RATED
SEATING SURFACE SHAPE ANGULAR
SEAT ANGLE IN DEG 30.000 NOMINAL
THREAD SERIES DESIGNATOR UN SINGLE THREADED PORTION
NOMINAL THREAD SIZE 3.625 INCHES SINGLE THREADED PORTION
THREAD QUANTITY PER INCH 12 SINGLE THREADED PORTION
THREAD CLASS 2A SINGLE THREADED PORTION
THREAD LENGTH 0.496 INCHES MINIMUM AND 0.501 INCHES MAXIMUM SINGLE THREADED PORTION

Restrictions/Controls & Freight Information | NSN 4820-01-190-5891

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:AItem does not contain precious metal
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 AX Defense Supply Center Columbus
Columbus, OH 43216-5000
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 4820-01-190-5891

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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each