Product Details | VALVE SEAT

4820-01-493-4689 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: 26408010243, 264080102-43 , 2640801X2, 2640-801X2, 2640-801X2 PC 43, 2640801X2PC43, 2643-405-01 ITEM 50, 264340501ITEM50, 845-7285244 ITEM 50, 8457285244ITEM50, 4820-01-493-4689, 01-493-4689, 4820014934689, 014934689

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 08 JAN 2002 01-493-4689

Drawings & Photos | NSN 4820-01-493-4689


Demand History | NSN 4820-01-493-4689

Part Number Request Date QTY Origin
4820-01-493-4689 2025-02-37 51 DIBBS
4820-01-493-4689 2024-05-150 62 DIBBS
4820-01-493-4689 2019-11-323 49 DIBBS
4820-01-493-4689 2017-10-275 28 DIBBS
4820-01-493-4689 2017-09-263 28 DIBBS

Cross Reference | NSN 4820-01-493-4689

Part Number Cage Code Manufacturer
2640-801X2 96169 ELECTRIC BOAT CORPORATION
2640-801X2 PC 43 96169 ELECTRIC BOAT CORPORATION
264080102-43 96169 ELECTRIC BOAT CORPORATION
2643-405-01 ITEM 50 96169 ELECTRIC BOAT CORPORATION
845-7285244 ITEM 50 53711 NAVAL SEA SYSTEMS COMMAND

Request a Quote

What Our Customers Say

Compare

NSNs for Compare ( up to 4 ): Add 4820-01-493-4689

Technical Data | NSN 4820-01-493-4689

Characteristic Specifications
STYLE DESIGNATOR B11 PLAIN
OVERALL HEIGHT 0.281 INCHES NOMINAL
BODY OUTSIDE DIAMETER 1.061 INCHES MAXIMUM
BODY INSIDE DIAMETER 0.562 INCHES NOMINAL
MATERIAL PLASTIC POLYTETRAFLUOROETHYLENE SEAT
HARDNESS RATING NOT RATED
SEATING SURFACE SHAPE RADIAL
SEAT RADIUS 0.281 INCHES NOMINAL
III END ITEM IDENTIFICATION WASP CLASS LHD

Restrictions/Controls & Freight Information | NSN 4820-01-493-4689

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 4820-01-493-4689

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