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Part Number

Part Number:
NSN:
NIIN:
Item Name:
RING , PISTON

Definition:

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.

CAGE Information

Code Company
31042 C M P CORPORATION

Federal Supply Class

Title

GASOLINE RECIPROCATING ENGINES,

Inclusions:

INCLUDES GAS RECIPROCATING ENGINES; ALL GASOLINE RECIPROCATING ENGINES EXCEPT AIRCRAFT PRIME MOVING.

Exclusions:

EXCLUDES ENGINE ACCESSORIES (FSC 2990).

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
ACXD RING STYLE CONCENTRIC
ACXF RADIAL WALL THICKNESS 0.1430 INCHES MINIMUM AND 0.1530 INCHES MAXIMUM
ZZZV FSC APPLICATION DATA REFRIGERATION COMPRESSOR
ADTE JOINT STYLE VERTICAL JOINT
CQKZ OIL PASSAGE TYPE AND QUANTITY 1 GROOVE HORIZONTALLY THROUGH RING
ACXJ OVERALL WIDTH 0.1860 INCHES MINIMUM AND 0.1865 INCHES MAXIMUM
AAGR CROSS-SECTIONAL SHAPE STYLE STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL
MATT MATERIAL IRON OVERALL
ACXZ STANDARD BORE DIAMETER 3.250 INCHES

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