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NSN: 4310-00-005-3348
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Part Numbers

Item Number Item Description
R63136M600 Ring, Piston
X1440T72M Ring, Piston

Master Requirement Codes

Code Translation
MATT The chemical compound or mechanical mixture properties of which the item is fabricated.
ACXZ The length of a straight line which passes through the center of the cylinder /engine, compressor, or the like/, and terminates at the inside diameter.

X1440T72M Piston Ring

Cage 88663

Technical Definition

Ring, Piston, also referenced with federal logistics item name code 11459 - A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. it is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. it may include an expander. excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.

Technical Characteristics

Material (MATT):
Steel overall
Overall Width (ACXJ):
0.2480 inches minimum and 0.2490 inches maximum
Standard Bore Diameter (ACXZ):
6.000 inches

National Stock Number (NSN)

4310-00-005-3348