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National Stock Number (NSN) Output Data

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.

Reference/Part Number

Part Number CAGE Status RNCC RNVC DAC RNAAC MSDS SADC
6318921 28265 F 5 9 2 AX
6318921 1ML14 A 3 2 2 AX

CAGE Information

Code Company
1ML14 D.W. HERCULES LLC DBA HERCULES ENGIN
28265 HERCULES ENGINE CO INC

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
ACXZ STANDARD BORE DIAMETER 5.750 INCHES
ADTE JOINT STYLE VERTICAL JOINT
CQKZ OIL PASSAGE TYPE AND QUANTITY 1 GROOVE BOTTOM AND 12 HOLE BOTTOM
ACXF RADIAL WALL THICKNESS 0.2200 INCHES NOMINAL
AAGR CROSS-SECTIONAL SHAPE STYLE STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL
MATT MATERIAL IRON OVERALL

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6318921 , 6318921 , 2805-00-273-0341 , 2805002730341 , 002730341 , 6318921 , 6318921 ,