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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
12603 CLARK EQUIPMENT CO

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
ACXD RING STYLE CONCENTRIC
ACXJ OVERALL WIDTH 0.2485 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM
ADTE JOINT STYLE VERTICAL JOINT
ACXF RADIAL WALL THICKNESS 0.0135 INCHES MINIMUM AND 0.0145 INCHES MAXIMUM
FEAT SPECIAL FEATURES BEVELED FACE,DOUBLE SCRAPER OPTIONAL
SFTT SURFACE TREATMENT NONMETALLIC COATED OVERALL
AAGR CROSS-SECTIONAL SHAPE STYLE STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL
ACXZ STANDARD BORE DIAMETER 3.188 INCHES
CQKZ OIL PASSAGE TYPE AND QUANTITY 10 SLOT HORIZONTALLY THROUGH RING
MATT MATERIAL IRON OVERALL

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