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NSN: 4820-00-001-4300
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Part Numbers

Item Number Item Description
20-06830PC4DLRN Seat, Valve
V3041DLRN Seat, Valve
V3907 PIECE 4 Seat, Valve
101-8026 Seat, Valve
V6830PC4DLRN Seat, Valve

Master Requirement Codes

Code Translation
ADAS The length of a straight line which passes through the center of a body, and terminates at the inside circumference.
ADAR The length of a straight line which passes through the center of the body, and terminates at the outside circumference.
MATT The chemical compound or mechanical mixture properties of which the item is fabricated.
ABKW The distance measured in a straight line from the bottom to the top of an item.
AJFZ The radius of the end surface upon which the mated surface seats.
CQKM The physical configuration of the surface of the seat.
STYL The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

20-06830PC4DLRN Valve Seat

Cage 03670

Technical Definition

Seat, Valve, also referenced with federal logistics item name code 22113 - 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.

Technical Characteristics

Body Inside Diameter (ADAS):
1.870 inches minimum and 1.880 inches maximum
Body Outside Diameter (ADAR):
2.682 inches minimum and 2.686 inches maximum
Material (MATT):
Plastic acetal overall
Overall Height (ABKW):
0.320 inches minimum and 0.330 inches maximum
Seat Radius (AJFZ):
0.187 inches nominal
Seating Surface Shape (CQKM):
Style Designator (STYL):

National Stock Number (NSN)