4820-99-338-7778
Valve Seat
4820993387778 993387778 Y1899/1/A4 ITEM 2 1649/A ITEM 2 Y1899/1/A4 Y1899/1/A4/2
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. View more Valve Seat
Managed by United Kingdom
NSN Created on 28 Nov 1991
Data Last Changed
January 2023
January 2023
NATO Update Count
1
1
NATO Data Quality

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Y1899/1/A4 ITEM 2 1649/A ITEM 2 Y1899/1/A4 Y1899/1/A4/2 A replaceable item designed to provide a stationary
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ITEM Y1899/1/A4/2 1649/A ITEM 2 Y1899/1/A4 Y1899/1/A4 ITEM 2 A replaceable item designed to provide
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ITEM 2 1649/A ITEM 2 Y1899/1/A4 Y1899/1/A4/2 A replaceable item designed to provide a stationary
Seat4820993387778 993387778 Y1899/1/A4 ITEM 2 1649/A ITEM 2Y1899/1/A4Y1899/1/A4/2 A replaceable item
ITEM 2 1649/A ITEM 2 Y1899/1/A4 Y1899/1/A4/2 A replaceable item designed to provide a stationary
Seat4820993387778 993387778 Y1899/1/A4 ITEM 2 1649/A ITEM 2Y1899/1/A4Y1899/1/A4/2 A replaceable item
ITEM 3 1649/A ITEM 3 Y1899/1/A4 A deformable material which prevents the passage of matter through
Valve Seat 4820993387778 993387778 how to enable JavaScript in your web browser . 4820-99-338-7778Valve
Seat4820993387778 993387778 Y1899/1/A4 ITEM 2 1649/A ITEM 2 Y1899/1/A4Y1899/1/A4/2 A replaceable item
Valve Seat 4820993387778 993387778 how to enable JavaScript in your web browser . 4820-99-338-7778Valve
Seat4820993387778 993387778 Y1899/1/A4 ITEM 2 1649/A ITEM 2 Y1899/1/A4Y1899/1/A4/2 A replaceable item
ITEM 3 1649/A ITEM 3 Y1899/1/A4 Y1899/1/A4/3 A deformable material which prevents the passage of
Valve Seat 4820993387778 993387778 how to enable JavaScript in your web browser . 4820-99-338-7778Valve
Seat4820993387778 993387778 Y1899/1/A4 ITEM 2 1649/A ITEM 2 Y1899/1/A4Y1899/1/A4/2 A replaceable item
Valve Seat 4820993387778 993387778 how to enable JavaScript in your web browser . 4820-99-338-7778Valve
Seat4820993387778 993387778 Y1899/1/A4 ITEM 2 1649/A ITEM 2 Y1899/1/A4Y1899/1/A4/2 A replaceable item
Restrictions 4820-99-338-7778
End Users 4820-99-338-7778
- United Kingdom (ZK)
Approved Sources 4820-99-338-7778
- Part Number
- Manufacturer
- Status
- Y1899/1/A4 ITEM 2
- Manufacturer
- K7735 - Young & Cunningham (Glasgow) Ltd (Replaced)
- Incomplete Reference
- Incomplete Reference
- 1649/A ITEM 2
- K5206 - Dmi Young & Cunningham Ltd (Active)
- Incomplete Secondary Reference
- Incomplete Secondary Reference
- Y1899/1/A4
- K7735 - Young & Cunningham (Glasgow) Ltd (Replaced)
- Incomplete Secondary Reference
- Incomplete Secondary Reference
- Y1899/1/A4/2
- K7735 - Young & Cunningham (Glasgow) Ltd (Replaced)
- Incomplete Secondary Reference
- Incomplete Secondary Reference
NATO Stock Numbers Related to 4820-99-338-7778
4820-22-625-1047 4820-12-197-1981 4820-12-375-4761 4810-19-002-2078 4820-99-411-7717 4820-12-334-1839 4820-12-331-7820 4820-66-127-6673 4810-12-385-6766 4820-12-347-0695 4820-99-526-9939 4820-66-141-2771 4820-99-556-8442 4810-12-315-6887 4810-12-176-6758 4820-98-200-1718 4820-12-701-3681 4820-99-538-9044