NSN 2825-00-106-8440

Part Details | PISTON RING

2825-00-106-8440 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.

Alternate Parts: 12311062, 12-31106-2, 12311062, 12-31106-2, 2825-00-106-8440, 00-106-8440, 2825001068440, 001068440

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
28SEP 01, 197200-106-844011459 ( RING, PISTON )
REFERENCE DRAWINGS & PICTURES

PLAIN RECTANGULAR, STRAIGHT FACE

CONCENTRIC

VERTICAL JOINT

Cross Reference | NSN 2825-00-106-8440
Part Number Cage Code Manufacturer
12-31106-275370KAYDON RING & SEAL, INC.DBA KAYDON
12-31106-280020NAVAL AIR WARFARE CENTER AIRCRAFTDIVISION CODE 4.8.8.0.0.B BLDG 148-2
Technical Data | NSN 2825-00-106-8440
Characteristic Specifications
CROSS-SECTIONAL SHAPE STYLE PLAIN RECTANGULAR, STRAIGHT FACE
JOINT STYLE VERTICAL JOINT
RING STYLE CONCENTRIC
RADIAL WALL THICKNESS0.5450 INCHES MINIMUM AND 0.5530 INCHES MAXIMUM
OVERALL WIDTH0.4990 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM
STANDARD BORE DIAMETER17.875 INCHES
SPECIAL FEATURESITEM IS A NON-AVIATION CRITICAL SAFETY ITEM (CSI) WHOSE FAILURE WILL RESULT IN SERIOUS DAMAGE TO EQUIPMENT OR SERIOUS INJURY OR DEATH TO PERSONNEL.
CRITICALITY CODE JUSTIFICATIONFEAT