Product Details | VALVE SEAT

4820-00-737-7971 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: H156333, H15-633-3, 4820-00-737-7971, 00-737-7971, 4820007377971, 007377971

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1961 00-737-7971

Drawings & Photos | NSN 4820-00-737-7971


Cross Reference | NSN 4820-00-737-7971

Part Number Cage Code Manufacturer
H15-633-3 35301 DRESSER INDUSTRIES INC LEROI DIV

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Technical Data | NSN 4820-00-737-7971

Characteristic Specifications
STYLE DESIGNATOR B7 PLAIN FLANGED
FLANGE DIAMETER 2.495 INCHES MINIMUM AND 2.505 INCHES MAXIMUM
BODY OUTSIDE DIAMETER 2.240 INCHES MINIMUM AND 2.250 INCHES MAXIMUM
BODY INSIDE DIAMETER 1.058 INCHES MINIMUM AND 1.068 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT 0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM
UNDER FLANGE HEIGHT 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
MATERIAL STEEL COMP 1137 OVERALL
HARDNESS RATING NOT RATED
SEATING SURFACE SHAPE RADIAL
SEAT RADIUS 0.016 INCHES NOMINAL
SEAL ACCOMMODATION TYPE GROOVED
SPECIAL FEATURES 12 HOLES,0.281 IN. DIA EQUALLY SPACED

Restrictions/Controls & Freight Information | NSN 4820-00-737-7971

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:UPrecious metal type is unknown
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 594 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 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 4820-00-737-7971

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 CodesYTERMINAL ITEM #(NON-STOCKED ITEMS) Future procurement is not authorized. No wholesale stock is available for issue. 1. Requisitions will not be processed to the wholesale manager. 2. Internal Service/agency requisitioning may be continued in accordance with the Service/agency requisitioning policies.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each