4820-01-058-1984, SEAT,VALVE

4820-01-058-1983 SEAT,VALVE

4820-01-058-1985 SEAT,VALVE

National Stock Number:
4820-01-058-1984

Federal Supply Class:
4820

National Item Identification Number:
010581984

Description:
SEAT,VALVE

Detail:
A replaceable item designed to provide a circular 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.

Manufacturer Information:

2640-801X01 ITEM 22	96169	ELECTRIC BOAT CORPORATION
2640-801X01 ITEM 22Q3	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2640-801X1, PIECE 22	96169	ELECTRIC BOAT CORPORATION
2640-801X1, PIECE 22Q3	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2640-801X1-ITEMNO-22	96169	ELECTRIC BOAT CORPORATION
2640-801X1-ITEMNO-22Q3	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2641-747 ITEM 26	96169	ELECTRIC BOAT CORPORATION
2641-747 ITEM 26Q3	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2642-747-01 ITEM 20	96169	ELECTRIC BOAT CORPORATION
2642-747-01 ITEM 20Q3	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2643-820-88-ITEM NO-11	96169	ELECTRIC BOAT CORPORATION
2643-820-88-ITEM NO-11Q3	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
845-4558779 ITEM 10	53711	NAVAL SEA SYSTEMS COMMAND
845-4558779 ITEM 10Q3	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
845-4687594 ITEM 20	53711	NAVAL SEA SYSTEMS COMMAND
845-4687594 ITEM 20	80064	NAVAL SHIP SYSTEMS COMMAND
845-4687594 ITEM 20Q3	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
845-7284929-ITEM NO-11	53711	NAVAL SEA SYSTEMS COMMAND
845-7284929-ITEM NO-11Q3	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG

Techincal Specification:

CRITICALITY CODE JUSTIFICATION	ZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	ITEMS THAT SUPPORT A LEVEL I OR SUBSAFE CRITICAL SYSTEM/COMPONENT THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS AND REQUIRES OBJECTIVE QUALITY EVIDENCE (OQE) TRACEABLE TO PERMANENT MARKING ON THE MATERIAL

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