Product Details | VALVE SEAT

4820-00-075-2255 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: 14521, 4820-00-075-2255, 00-075-2255, 4820000752255, 000752255

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1963 00-075-2255

Drawings & Photos | NSN 4820-00-075-2255


Cross Reference | NSN 4820-00-075-2255

Part Number Cage Code Manufacturer
14521 99643 EATON CORPORATION DBA EATON AEROSPACE

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Technical Data | NSN 4820-00-075-2255

Characteristic Specifications
STYLE DESIGNATOR B14A PLAIN FLANGED
FLANGE DIAMETER 0.371 INCHES MINIMUM AND 0.373 INCHES MAXIMUM
BODY OUTSIDE DIAMETER 0.262 INCHES MINIMUM AND 0.264 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT 0.200 INCHES MINIMUM AND 0.202 INCHES MAXIMUM
UNDER FLANGE HEIGHT 0.138 INCHES MINIMUM AND 0.143 INCHES MAXIMUM
BODY STEPPED INSIDE DIAMETER 0.125 INCHES NOMINAL FIRST STEP 0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM SECOND STEP
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-763 CL 416 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING 25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
SEATING SURFACE SHAPE FLAT
MANUFACTURERS CODE 99643
DESIGN CONTROL REFERENCE 14521

Restrictions/Controls & Freight Information | NSN 4820-00-075-2255

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 XX
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 4820-00-075-2255

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