Product Details | VALVE SEAT

4820-00-623-9541 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: 12429NPC19, 31142, 4820-00-623-9541, 00-623-9541, 4820006239541, 006239541, 311420058

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1963 00-623-9541

Drawings & Photos | NSN 4820-00-623-9541


Demand History | NSN 4820-00-623-9541

Part Number Request Date QTY Origin
4820-00-623-9541 2025-11-317 24 DIBBS
4820-00-623-9541 2025-11-306 24 DIBBS
4820-00-623-9541 2025-10-300 24 DIBBS
4820-00-623-9541 2025-10-289 24 DIBBS
4820-00-623-9541 2024-09-247 16 DIBBS
4820-00-623-9541 2024-08-235 16 DIBBS
4820-00-623-9541 2024-02-32 24 DIBBS
4820-00-623-9541 2024-01-21 24 DIBBS
4820-00-623-9541 2023-09-263 11 DIBBS
4820-00-623-9541 2023-01-16 8 DIBBS
4820-00-623-9541 2022-09-262 13 DIBBS
4820-00-623-9541 2022-08-243 1 DIBBS
4820-00-623-9541 2022-06-172 9 DIBBS
4820-00-623-9541 2022-05-150 9 DIBBS
4820-00-623-9541 2021-09-262 3 DIBBS
4820-00-623-9541 2019-01-07 11 DIBBS
4820-00-623-9541 2018-12-361 11 DIBBS
4820-00-623-9541 2017-12-348 11 DIBBS
4820-00-623-9541 2013-08-220 8 DIBBS
4820-00-623-9541 2013-03-87 1 DIBBS
4820-00-623-9541 2013-01-25 8 DIBBS
4820-00-623-9541 2010-11-305 5 DIBBS

Cross Reference | NSN 4820-00-623-9541

Part Number Cage Code Manufacturer
12429NPC19 35795 LESLIE CONTROLS, INC.
31142 35795 LESLIE CONTROLS, INC.
311420058 35795 LESLIE CONTROLS, INC.

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Technical Data | NSN 4820-00-623-9541

Characteristic Specifications
STYLE DESIGNATOR B14A PLAIN FLANGED
FLANGE DIAMETER 1.800 INCHES NOMINAL
BODY OUTSIDE DIAMETER 1.188 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT 0.562 INCHES NOMINAL
UNDER FLANGE HEIGHT 0.438 INCHES NOMINAL
BODY STEPPED INSIDE DIAMETER 1.625 INCHES MINIMUM AND 1.626 INCHES MAXIMUM FIRST STEP 0.812 INCHES NOMINAL SECOND STEP
MATERIAL STEEL CORROSION RESISTING BODY COBALT ALLOY FACE
HARDNESS RATING NOT RATED
SEATING SURFACE SHAPE ANGULAR
SEAT ANGLE IN DEG 45.000 NOMINAL
MANUFACTURERS CODE 35795
DESIGN CONTROL REFERENCE 311420058

Restrictions/Controls & Freight Information | NSN 4820-00-623-9541

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 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 4820-00-623-9541

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