NSN 2990-00-422-1979
Part Details | PISTON RING
2990-00-422-1979 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: P6911312, P69113-12, 2990-00-422-1979, 00-422-1979, 2990004221979, 004221979
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
29 | JUL 24, 1970 | 00-422-1979 | 11459 ( RING, PISTON ) |
REFERENCE DRAWINGS & PICTURES
PLAIN RECTANGULAR, STRAIGHT FACE

CONCENTRIC

VERTICAL JOINT

Cross Reference | NSN 2990-00-422-1979
Part Number | Cage Code | Manufacturer |
---|---|---|
P69113-12 | 25561 | PARKER-HANNIFIN CORPORATIONDBA CYLINDER DIVISION |
Technical Data | NSN 2990-00-422-1979
Characteristic | Specifications |
---|---|
CROSS-SECTIONAL SHAPE STYLE | PLAIN RECTANGULAR, STRAIGHT FACE |
JOINT STYLE | VERTICAL JOINT |
RING STYLE | CONCENTRIC |
RADIAL WALL THICKNESS | 0.0940 INCHES NOMINAL |
OVERALL WIDTH | 0.1250 INCHES NOMINAL |
STANDARD BORE DIAMETER | 2.500 INCHES |