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National Stock Number:
2805-01-193-0476
Federal Supply Class:
2805
National Item Identification Number:
011930476
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:
| MD31623-92 | 0PXV4 | THE BOEING COMPANY | | MD31623-92 | 76301 | THE BOEING COMPANY | | MD31623-92 | K0349 | M L AVIATION LTD INCORPORATING M L WALLOP DEFENCE SYSTEMS LTD | | MD31623-92 | U1918 | MISSION SYSTEMS WIMBORNE LIMITED |
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Techincal Specification:
| CROSS-SECTIONAL SHAPE STYLE | PLAIN RECTANGULAR, STRAIGHT FACE | | JOINT STYLE | VERTICAL/DIAGONAL JOINT | | OVERALL WIDTH | 0.0570 INCHES MINIMUM AND 0.0590 INCHES MAXIMUM | | MATERIAL | COPPER ALLOY OVERALL | | OIL PASSAGE TYPE AND QUANTITY | 1 SLOT VERTICALLY THROUGH RING | | RADIAL WALL THICKNESS | 0.0250 INCHES NOMINAL | | RING STYLE | CONCENTRIC | | STANDARD BORE DIAMETER | 0.390 INCHES AND 0.395 INCHES |
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