Product Details | VALVE SEAT

4820-01-445-0877 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: 8549030279, 8549-030-279, 9799733, 9799-733, 9799-733 ITEM 5 20IN, 9799733ITEM520IN, 4820-01-445-0877, 01-445-0877, 4820014450877, 014450877

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 23 MAY 1997 01-445-0877

Drawings & Photos | NSN 4820-01-445-0877


Demand History | NSN 4820-01-445-0877

Part Number Request Date QTY Origin
8549-030-279 2024-07-200 9 DIBBS
9799-733 ITEM 5 20IN 2024-07-200 9 DIBBS
8549-030-279 2021-10-298 1 DIBBS
9799-733 ITEM 5 20IN 2021-10-298 1 DIBBS
8549-030-279 2021-10-284 1 DIBBS
9799-733 ITEM 5 20IN 2021-10-284 1 DIBBS
8549-030-279 2021-04-98 1 DIBBS
9799-733 ITEM 5 20IN 2021-04-98 1 DIBBS

Cross Reference | NSN 4820-01-445-0877

Part Number Cage Code Manufacturer
8549-030-279 57574 VELAN VALVE CORPORATION DIV VELAN VALVE CORPORATION
9799-733 57574 VELAN VALVE CORPORATION DIV VELAN VALVE CORPORATION
9799-733 ITEM 5 20IN 57574 VELAN VALVE CORPORATION DIV VELAN VALVE CORPORATION

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Technical Data | NSN 4820-01-445-0877

Characteristic Specifications
STYLE DESIGNATOR B6 PLAIN
OVERALL HEIGHT 1.750 INCHES NOMINAL
BODY OUTSIDE DIAMETER 20.490 INCHES NOMINAL
BODY INSIDE DIAMETER 19.250 INCHES NOMINAL
MATERIAL STEEL CORROSION RESISTING SEAT
MATERIAL DOCUMENT AND CLASSIFICATION ASTM A106, GRADE B ASSN STD SINGLE MATERIAL RESPONSE SEAT
HARDNESS RATING NOT RATED
SEATING SURFACE SHAPE FLAT
III END ITEM IDENTIFICATION NIMITZ CLASS CVN

Restrictions/Controls & Freight Information | NSN 4820-01-445-0877

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 594 unknown
Originating Activity Code AX Defense Supply Center Columbus
Columbus, OH 43216-5000
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 4820-01-445-0877

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