Product Details | VALVE SEAT

4820-01-075-6588 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: SS8451889568, SS845-1889568, SS8451889568AS, SS845-1889568AS, SS845-1889568ASSYCPC4 1 1/2IN, SS8451889568ASSYCPC4112IN, SS8451889587, SS845-1889587, SS845-1889587ASSYC PC4 1 1-2IN, SS8451889587ASSYCPC4112IN, 12620902X6, 12620-902X6, 2620902, 2620-902, 2620-902 ASSYC PC4 1 1-2IN, 2620902ASSYCPC4112IN, 2620902X6, 2620-902X6, 4SS8451889568, 4SS845-1889568, 4SS845-1889568ASSYCPC4 1/2IN, 4SS8451889568ASSYCPC412IN, 8032177934, 803-2177934, 80321779347XX19, 803-2177934-7XX-19, 8032177934X7XX19, 803-2177934-X7XX-19, 4820-01-075-6588, 01-075-6588, 4820010756588, 010756588

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 25 APR 1979 01-075-6588

Drawings & Photos | NSN 4820-01-075-6588


Demand History | NSN 4820-01-075-6588

Part Number Request Date QTY Origin
4820-01-075-6588 2023-09-250 28 DIBBS
4820-01-075-6588 2021-06-174 17 DIBBS
4820-01-075-6588 2016-05-122 36 DIBBS
4820-01-075-6588 2014-02-44 24 DIBBS
8032177934 2013-01-22 1 United States
8032177934 2013-01-21 1 United States

Cross Reference | NSN 4820-01-075-6588

Part Number Cage Code Manufacturer
12620-902X6 65371 SEIFERT NDT APPARATUS AND SUPPLY SALES INC
2620-902 96169 ELECTRIC BOAT CORPORATION
2620-902 ASSYC PC4 1 1-2IN 96169 ELECTRIC BOAT CORPORATION
2620-902X6 53711 NAVAL SEA SYSTEMS COMMAND
4SS845-1889568 67636 LITHO DEVELOPMENT AND RESEARCH
4SS845-1889568ASSYCPC4 1/2IN 67636 LITHO DEVELOPMENT AND RESEARCH
803-2177934 53711 NAVAL SEA SYSTEMS COMMAND
803-2177934 80064 NAVAL SHIP SYSTEMS COMMAND
803-2177934-7XX-19 53711 NAVAL SEA SYSTEMS COMMAND
803-2177934-X7XX-19 80064 NAVAL SHIP SYSTEMS COMMAND
SS845-1889568 76364 MILWAUKEE VALVE COMPANY, INC. DBA HAMMOND
SS845-1889568AS 53711 NAVAL SEA SYSTEMS COMMAND
SS845-1889568ASSYCPC4 1 1/2IN 76364 MILWAUKEE VALVE COMPANY, INC. DBA HAMMOND
SS845-1889587 80064 NAVAL SHIP SYSTEMS COMMAND
SS845-1889587ASSYC PC4 1 1-2IN 80064 NAVAL SHIP SYSTEMS COMMAND

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Technical Data | NSN 4820-01-075-6588

Characteristic Specifications
STYLE DESIGNATOR B2 THREADED FLANGED
FLANGE DIAMETER 2.125 INCHES NOMINAL
BODY INSIDE DIAMETER 1.500 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT 0.247 INCHES NOMINAL
UNDER FLANGE HEIGHT 0.406 INCHES NOMINAL
MATERIAL NICKEL ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING NOT RATED
SEATING SURFACE SHAPE ANGULAR
SEAT ANGLE IN DEG 45.000 NOMINAL
THREAD SERIES DESIGNATOR UNS SINGLE THREADED PORTION
NOMINAL THREAD SIZE 1.938 INCHES SINGLE THREADED PORTION
THREAD QUANTITY PER INCH 18 SINGLE THREADED PORTION
THREAD CLASS 3A SINGLE THREADED PORTION
THREAD LENGTH 0.406 INCHES NOMINAL SINGLE THREADED PORTION

Restrictions/Controls & Freight Information | NSN 4820-01-075-6588

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 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 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 4820-01-075-6588

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