2940-00-720-4959 FILTER,FLUID Index 4310-00-720-4964 RING,PISTON

National Stock Number:
4310-00-720-4963

Federal Supply Class:
4310

National Item Identification Number:
007204963

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:
5000S4902C841397REVBPC180064NAVAL SHIP SYSTEMS COMMAND
841397PC180064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, THREE PIECE, STRAIGHT FACE
JOINT STYLEDIAGONAL JOINT
OVERALL WIDTH0.3380 INCHES MINIMUM AND 0.3390 INCHES MAXIMUM
MATERIALIRON OVERALL
RADIAL WALL THICKNESS0.2460 INCHES MINIMUM AND 0.2660 INCHES MAXIMUM
RING STYLECONCENTRIC
STANDARD BORE DIAMETER6.500 INCHES
SPECIAL FEATURESROCKWELL B HARDNESS 95-105


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