Product Details | VALVE SEAT

4820-01-420-4998 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: WALWORTH 5275F 2.50IN IT3, WALWORTH5275F250INIT3, 5275F 2.50IN IT3, 5275F250INIT3, 639585, 0639585, 4820-01-420-4998, 01-420-4998, 4820014204998, 014204998

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 18 OCT 1995 01-420-4998

Cross Reference | NSN 4820-01-420-4998

Part Number Cage Code Manufacturer
0639585 63686 THE WALWORTH COMPANY
5275F 2.50IN IT3 63686 THE WALWORTH COMPANY
639585 63686 THE WALWORTH COMPANY
WALWORTH 5275F 2.50IN IT3 0YRW0 VALVE AUTOMATION AND CONTROL OF SAN DIEGO, INC.

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Technical Data | NSN 4820-01-420-4998

Characteristic Specifications
MATERIAL STEEL SEAT
SEATING SURFACE SHAPE O-RING
SPECIAL FEATURES CARBON MOLY STEEL A-182 GR F1, W 13PERCENT CHROME STEEL FACING 250-280 BHN, AA TRIM 2.50IN. 5275F GLOBE VALVE
III END ITEM IDENTIFICATION NAVY WEAPON SYSTEM CODE TH, STATEGIC SEALIFT CONVERSION SHIPS CLASS

Restrictions/Controls & Freight Information | NSN 4820-01-420-4998

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 4820-01-420-4998

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