4820-00-411-4221, SEAT,VALVE

National Stock Number:
4820-00-411-4221

Federal Supply Class:
4820

National Item Identification Number:
004114221

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:

2640-244PC10DLRNQ3	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2640-244PC10DLRNQA	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2640-336X1PC23Q3	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2640-336X1PC23QA	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2640-354X3PC30Q3	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2640-354X3PC30	96169	ELECTRIC BOAT CORPORATION
2640-354X3PC30QA	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2640-727X1PC7Q3	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2641-744 ITEM 26Q3	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
SS845-2050884PC30Q3	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
SS845-2050884PC30QA	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
SS845-2050884PC30	80064	NAVAL SHIP SYSTEMS COMMAND
2641-744 ITEM 26	96169	ELECTRIC BOAT CORPORATION
2640-727X1PC7	96169	ELECTRIC BOAT CORPORATION

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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