2805-01-189-8606 RING,PISTON Index 5120-01-189-8608 WRENCH,SOCKET

National Stock Number:
2805-01-189-8607

Federal Supply Class:
2805

National Item Identification Number:
011898607

Description:
RING,PISTON

Detail:
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.


Manufacturer Information:
MD31623-163K0349M L AVIATION LTD INCORPORATING M L WALLOP DEFENCE SYSTEMS LTD
MD31623-163U1918MISSION SYSTEMS WIMBORNE LIMITED


Techincal Specification:
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, STRAIGHT FACE
JOINT STYLEVERTICAL/DIAGONAL JOINT
OVERALL WIDTH0.0570 INCHES MINIMUM AND 0.5900 INCHES MAXIMUM
MATERIALCOPPER ALLOY OVERALL
OIL PASSAGE TYPE AND QUANTITY1 SLOT VERTICALLY THROUGH RING
RADIAL WALL THICKNESS0.0380 INCHES NOMINAL
RING STYLECONCENTRIC
SPECIAL FEATURESRING
STANDARD BORE DIAMETER0.553 INCHES AND 0.558 INCHES


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