Product Details | VALVE SEAT

4820-00-690-0345 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: ND6626PC52, B2364, 52ND6602, 700302, 717085, 900068, 4820-00-690-0345, 00-690-0345, 4820006900345, 006900345

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1963 00-690-0345

Drawings & Photos | NSN 4820-00-690-0345


Demand History | NSN 4820-00-690-0345

Part Number Request Date QTY Origin
4820-00-690-0345 2012-06-156 4 US

Cross Reference | NSN 4820-00-690-0345

Part Number Cage Code Manufacturer
52ND6602 82328 DRESSER RAND CO TERRY CORP STEAM TURBINE MOTOR AND
52ND6602 83238 GEM-DANDY INC
700302 0B5H6 NIANTIC TOOL, INC.
717085 0BR59 DRESSER-RAND COMPANY DBA STEAM TRBINE MTR GENERATOR DIV
717085 82328 DRESSER RAND CO TERRY CORP STEAM TURBINE MOTOR AND
717085 93235 TURBODYNE DIV OF DRESSER INDUSTRIES INC
900068 0DKH2 EVANS LEE INC
B2364 0B5H6 NIANTIC TOOL, INC.
ND6626PC52 83238 GEM-DANDY INC

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Technical Data | NSN 4820-00-690-0345

Characteristic Specifications
STYLE DESIGNATOR B7 PLAIN FLANGED
FLANGE DIAMETER 1.998 INCHES MINIMUM AND 1.999 INCHES MAXIMUM
BODY OUTSIDE DIAMETER 1.876 INCHES MINIMUM AND 1.877 INCHES MAXIMUM
BODY INSIDE DIAMETER 1.124 INCHES MINIMUM AND 1.126 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT 0.375 INCHES NOMINAL
UNDER FLANGE HEIGHT 0.250 INCHES NOMINAL
MATERIAL STEEL COMP 303 OR STEEL CORROSION RESISTING OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-763,CLASS 303 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-763,CLASS 416 FED SPEC SINGLE MATERIAL RESPONSE BODY MIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FACE
SURFACE TREATMENT PASSIVATE OVERALL
HARDNESS RATING NOT RATED
SEATING SURFACE SHAPE ANGULAR
SEAT ANGLE IN DEG 25.000 NOMINAL

Restrictions/Controls & Freight Information | NSN 4820-00-690-0345

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 4820-00-690-0345

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