3120-00-974-8215 BUSHING,SLEEVE Index 3110-00-974-8219 BEARING,ROLLER,NEEDLE

National Stock Number:
4310-00-974-8218

Federal Supply Class:
4310

National Item Identification Number:
009748218

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:
57699473030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, STRAIGHT FACE
FSC APPLICATION DATADOME,PROPELLER,AIRCRAFT
JOINT STYLESTEP JOINT
OVERALL WIDTH0.1230 INCHES MINIMUM AND 0.1240 INCHES MAXIMUM
MATERIALCOPPER ALLOY OVERALL
PIN HOLE SLOT LENGTH0.003 INCHES MINIMUM AND 0.013 INCHES MAXIMUM
PIN HOLE CORNER RADIUS0.016 INCHES NOMINAL
PIN HOLE STYLEELONGATED STEP JOINT PINHOLE
RADIAL WALL THICKNESS0.1120 INCHES MINIMUM AND 0.1220 INCHES MAXIMUM
RING STYLECONCENTRIC
RING WIDTH PIN HOLE DEPTH0.016 INCHES NOMINAL
STANDARD BORE DIAMETER2.625 INCHES


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