Product Details | VALVE SEAT

4820-00-571-3718 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: 894B361PC2, 4820-00-571-3718, 00-571-3718, 4820005713718, 005713718

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 17 JAN 1968 00-571-3718

Drawings & Photos | NSN 4820-00-571-3718


Cross Reference | NSN 4820-00-571-3718

Part Number Cage Code Manufacturer
894B361PC2 01289 GENERAL ELECTRIC COMPANY DBA GE DIV GE-AVIATION GEAR PLANT

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Technical Data | NSN 4820-00-571-3718

Characteristic Specifications
STYLE DESIGNATOR B7 PLAIN FLANGED
FLANGE DIAMETER 4.955 INCHES MINIMUM AND 4.956 INCHES MAXIMUM
BODY OUTSIDE DIAMETER 3.680 INCHES NOMINAL
BODY INSIDE DIAMETER 2.578 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT 1.060 INCHES NOMINAL
UNDER FLANGE HEIGHT 1.320 INCHES NOMINAL
MATERIAL STEEL BODY ROD,WELDING,SURFACING FACE
MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-18410,CLASS A MIL SPEC SINGLE MATERIAL RESPONSE BODY MIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FACE
HARDNESS RATING NOT RATED
SEATING SURFACE SHAPE RADIAL
SEAT RADIUS 0.180 INCHES NOMINAL
MANUFACTURERS CODE 01289
DESIGN CONTROL REFERENCE 894B361PC2

Restrictions/Controls & Freight Information | NSN 4820-00-571-3718

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 576 unknown
Originating Activity Code HD Naval Inventory Control Point
Mechanicsburg, PA 17055-0788
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
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 4820-00-571-3718

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