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National Stock Number:
2805-00-068-6551
Federal Supply Class:
2805
National Item Identification Number:
000686551
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.
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Manufacturer Information:
| 114H6822-1 | 77272 | THE BOEING COMPANY |
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Techincal Specification:
| MATERIAL | COPPER ALLOY OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | 17029TURCON MFR REF SINGLE MATERIAL RESPONSE OVERALL | | CROSS-SECTIONAL SHAPE STYLE | PLAIN RECTANGULAR, STRAIGHT FACE | | JOINT STYLE | STEP JOINT | | RING STYLE | CONCENTRIC | | RADIAL WALL THICKNESS | 0.1260 INCHES MINIMUM AND | | 0.1300 INCHES MAXIMUM | | OVERALL WIDTH | 0.2480 INCHES MINIMUM AND | | 0.2500 INCHES MAXIMUM | | STANDARD BORE DIAMETER | 2.858 INCHES | | SPECIAL FEATURES | MAX SURFACE FINISH 125 MICROINCHES AA O/A | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 77272 | | DESIGN CONTROL REFERENCE | 114H6822-1 |
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