Product Details | VALVE SEAT

4820-00-840-8761 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: 175782, 1757820081, 175782-0081, 4820-00-840-8761, 00-840-8761, 4820008408761, 008408761

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 21 DEC 1966 00-840-8761

Drawings & Photos | NSN 4820-00-840-8761


Demand History | NSN 4820-00-840-8761

Part Number Request Date QTY Origin
175782-0081 2024-01-18 18 DIBBS
175782-0081 2021-02-46 20 DIBBS
175782-0081 2019-06-169 16 DIBBS
4820-00-840-8761 2017-11-311 14 DIBBS
4820-00-840-8761 2013-04-115 18 DIBBS
4820-00-840-8761 2013-02-37 18 DIBBS

Cross Reference | NSN 4820-00-840-8761

Part Number Cage Code Manufacturer
175782 99657 MAROTTA CONTROLS, INC.
175782-0081 99657 MAROTTA CONTROLS, INC.

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Technical Data | NSN 4820-00-840-8761

Characteristic Specifications
STYLE DESIGNATOR B7 PLAIN FLANGED
FLANGE DIAMETER 0.372 INCHES MINIMUM AND 0.373 INCHES MAXIMUM
BODY OUTSIDE DIAMETER 0.256 INCHES MINIMUM AND 0.258 INCHES MAXIMUM
BODY INSIDE DIAMETER 0.124 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT 0.033 INCHES MINIMUM AND 0.035 INCHES MAXIMUM
UNDER FLANGE HEIGHT 0.080 INCHES MINIMUM AND 0.085 INCHES MAXIMUM
MATERIAL PLASTIC OVERALL
HARDNESS RATING NOT RATED
SEATING SURFACE SHAPE FLAT
MANUFACTURERS CODE 99657
DESIGN CONTROL REFERENCE 175782-0081

Restrictions/Controls & Freight Information | NSN 4820-00-840-8761

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 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 4820-00-840-8761

Category Code Description
Materiel Category and Inventory ManagerJ Ground Forces Support Materiel (DLA/GSA Items)
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code0 Medical Materiel
Weapons Systems/End Item or Homogeneous Group00DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements CodeX Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
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
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