Product Details | VALVE SEAT

4820-01-440-9121 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: A046200 2IN ITEM 2, A0462002INITEM2, 18S-FS2 2IN ITEM 2, 18SFS22INITEM2, 4820-01-440-9121, 01-440-9121, 4820014409121, 014409121

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 28 JAN 1997 01-440-9121

Drawings & Photos | NSN 4820-01-440-9121


Demand History | NSN 4820-01-440-9121

Part Number Request Date QTY Origin
18S-FS2 2IN ITEM 2 2025-11-324 13 DIBBS
A046200 2IN ITEM 2 2025-11-324 13 DIBBS
A0462002INITEM2 2016-11-308 2 United States
4820-01-440-9121 2009-07-183 58 DIBBS

Cross Reference | NSN 4820-01-440-9121

Part Number Cage Code Manufacturer
18S-FS2 2IN ITEM 2 1V334 KEY INDUSTRIES INC DBA LIBERTY EQUIPMENT AND SUPPLY CO
18S-FS2 2IN ITEM 2 61661 NEWMANS INC NEW JERSEY DIV
A046200 2IN ITEM 2 1V334 KEY INDUSTRIES INC DBA LIBERTY EQUIPMENT AND SUPPLY CO
A046200 2IN ITEM 2 61661 NEWMANS INC NEW JERSEY DIV

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Technical Data | NSN 4820-01-440-9121

Characteristic Specifications
STYLE DESIGNATOR B12 PLAIN FLANGED
MATERIAL STEEL COMP 410 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION ASTM A276 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING NOT RATED
SEATING SURFACE SHAPE ANGULAR
III END ITEM IDENTIFICATION 4930-01-230-0781; STRATEGIC SEALIFT CONVERSION SHIPS CLASS

Restrictions/Controls & Freight Information | NSN 4820-01-440-9121

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.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
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 4820-01-440-9121

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