4310-00-720-4965 RING,PISTON Index 5120-00-720-4969 SCREWDRIVER,FLAT TIP

National Stock Number:
4310-00-720-4966

Federal Supply Class:
4310

National Item Identification Number:
007204966

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:
5000S4902C841397REVBPC353711NAVAL SEA SYSTEMS COMMAND
5000S4902C841397REVBPC380064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, THREE PIECE, STRAIGHT FACE
JOINT STYLEDIAGONAL JOINT
OVERALL WIDTH0.2450 INCHES MINIMUM AND 0.2460 INCHES MAXIMUM
MATERIALIRON OVERALL
RADIAL WALL THICKNESS0.1240 INCHES MINIMUM AND 0.1440 INCHES MAXIMUM
RING STYLECONCENTRIC
STANDARD BORE DIAMETER2.500 INCHES


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