Product Details | VALVE SEAT

4820-00-925-3251 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: 697736, 4820-00-925-3251, 00-925-3251, 4820009253251, 009253251

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 28 JAN 1966 00-925-3251

Drawings & Photos | NSN 4820-00-925-3251


Cross Reference | NSN 4820-00-925-3251

Part Number Cage Code Manufacturer
697736 99167 HAMILTON SUNDSTRAND CORPORATION

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Technical Data | NSN 4820-00-925-3251

Characteristic Specifications
STYLE DESIGNATOR B1 THREADED FLANGED
FLANGE DIAMETER 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM
BODY INSIDE DIAMETER 0.625 INCHES MINIMUM AND 0.627 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM
UNDER FLANGE HEIGHT 0.396 INCHES MINIMUM AND 0.416 INCHES MAXIMUM
MATERIAL ALUMINUM OVERALL
SURFACE TREATMENT ANODIZE OVERALL
MANUFACTURERS CODE 99167
DESIGN CONTROL REFERENCE 697736

Restrictions/Controls & Freight Information | NSN 4820-00-925-3251

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 SX Oklahoma City Air Logistics Center
Tinker AFB, OK 73145-3043
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 4820-00-925-3251

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 CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each