Product Details | VALVE SEAT

4820-01-203-4792 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: 29984, 29984 PIECE 4 1 1/4 IN, 29984PIECE4114IN, 4820-01-203-4792, 01-203-4792, 4820012034792, 012034792

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 14 MAR 1985 01-203-4792

Drawings & Photos | NSN 4820-01-203-4792


Cross Reference | NSN 4820-01-203-4792

Part Number Cage Code Manufacturer
29984 14959 CRANE CO DIV VALVE DIV
29984 PIECE 4 1 1/4 IN 14959 CRANE CO DIV VALVE DIV

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Technical Data | NSN 4820-01-203-4792

Characteristic Specifications
STYLE DESIGNATOR B7 PLAIN FLANGED
FLANGE DIAMETER 1.563 INCHES NOMINAL
BODY OUTSIDE DIAMETER 1.389 INCHES MINIMUM AND 1.391 INCHES MAXIMUM
BODY INSIDE DIAMETER 1.229 INCHES MINIMUM AND 1.239 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT 0.319 INCHES MINIMUM AND 0.322 INCHES MAXIMUM
UNDER FLANGE HEIGHT 0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM
MATERIAL STEEL CORROSION RESISTING SEAT
MATERIAL DOCUMENT AND CLASSIFICATION ASTM A351 GR.CF-8M ASSN STD SINGLE MATERIAL RESPONSE SEAT
HARDNESS RATING NOT RATED
SEATING SURFACE SHAPE ANGULAR
SEAT ANGLE IN DEG 45.000 NOMINAL

Restrictions/Controls & Freight Information | NSN 4820-01-203-4792

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 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 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 4820-01-203-4792

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