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National Stock Number:
1620-01-249-9133
Federal Supply Class:
1620
National Item Identification Number:
012499133
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:
| 68A450635 | 76301 | THE BOEING COMPANY | | 68A450635-2003 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| CRITICALITY CODE JUSTIFICATION | FEAT | | CROSS-SECTIONAL SHAPE STYLE | PLAIN RECTANGULAR, STRAIGHT FACE | | JOINT STYLE | VERTICAL/DIAGONAL JOINT | | OVERALL WIDTH | 0.2470 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY 7075 OVERALL | | RADIAL WALL THICKNESS | 0.5200 INCHES MINIMUM AND 0.5250 INCHES MAXIMUM | | RING STYLE | CONCENTRIC | | SPECIAL FEATURES | HAS CRITCAL FEATURE SUCH AS HEAT TREATMENT, SURFACE FINISH, OR MATERIAL OR MATERIAL TYPE AND SPECIAL INSP | | STANDARD BORE DIAMETER | 2.490 INCHES |
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