Product Details | VALVE SEAT

4820-00-992-0630 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: 667J658PC9, 915D549H01, 915D549PC1, 4820-00-992-0630, 00-992-0630, 4820009920630, 009920630

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1962 00-992-0630

Drawings & Photos | NSN 4820-00-992-0630


Cross Reference | NSN 4820-00-992-0630

Part Number Cage Code Manufacturer
667J658PC9 79500 WESTINGHOUSE ELECTRIC CORP
915D549H01 79500 WESTINGHOUSE ELECTRIC CORP
915D549H01 88657 WESTINGHOUSE ELECTRIC CORP POWER GENERATION-TURBINE DIV
915D549H01 90099 NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN MARINE SYSTEMS
915D549PC1 79500 WESTINGHOUSE ELECTRIC CORP
915D549PC1 90099 NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN MARINE SYSTEMS

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Technical Data | NSN 4820-00-992-0630

Characteristic Specifications
STYLE DESIGNATOR B1A THREADED FLANGED
FLANGE DIAMETER 2.460 INCHES MINIMUM AND 2.480 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT 1.000 INCHES NOMINAL
UNDER FLANGE HEIGHT 0.875 INCHES NOMINAL
BODY STEPPED INSIDE DIAMETER 0.687 INCHES NOMINAL FIRST STEP 0.966 INCHES NOMINAL SECOND STEP
MATERIAL STEEL BODY STEEL SEAT
MATERIAL DOCUMENT AND CLASSIFICATION DE15-15B MFR REF SINGLE MATERIAL RESPONSE BODY STELLITE HAYNES 6 MFR REF SINGLE MATERIAL RESPONSE SEAT
HARDNESS RATING NOT RATED
SEATING SURFACE SHAPE RADIAL
SEAT RADIUS 0.255 INCHES MINIMUM AND 0.259 INCHES MAXIMUM
THREAD SERIES DESIGNATOR UN SINGLE THREADED PORTION
NOMINAL THREAD SIZE 2.000 INCHES SINGLE THREADED PORTION
THREAD QUANTITY PER INCH 12 SINGLE THREADED PORTION
THREAD CLASS 3A SINGLE THREADED PORTION
THREAD LENGTH 0.875 INCHES NOMINAL SINGLE THREADED PORTION
III FSC APPLICATION DATA STEAM TURBINE,ELECTRIC GENERATION
MANUFACTURERS CODE 90099
DESIGN CONTROL REFERENCE 915D549H01

Restrictions/Controls & Freight Information | NSN 4820-00-992-0630

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 4820-00-992-0630

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 CodesXSEMIACTIVE ITEM-NO REPLACEMENT (NON-STOCKED ITEMS) A potentially inactive NSN which must be retained in the supply system as an item of supply because (1) stocks of the item are on hand or in use below the wholesale level and (2) the NSN is cited in equipment authorization documents TO & E, TA, TM, etc., or in-use assets are being reported. 1. Items are authorized for central procurement but not authorized for stockage at wholesale level. 2. Requisitions for in-use replacement will be authorized in accordance with individual Military Service directives. 3. Requisitions may be submitted as requirements generate. Repetitive demands may dictate an AAC change to permit wholesale stockage.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each