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		                        | National Stock Number:
 4310-00-504-8923
 
 Federal Supply Class:
 4310
 
 National Item Identification Number:
 005048923
 
 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:
 
 | 10876153 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |  | 2029150 | 61465 | GARWOOD/FELLER INC GARWOOD WINCH DIV |  | 4310005048923 | SCY13 | E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE | 
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 Techincal Specification:
 
 | MATERIAL | PLASTIC PHENOLIC OVERALL |  | CROSS-SECTIONAL SHAPE STYLE | PLAIN RECTANGULAR, STRAIGHT FACE |  | JOINT STYLE | VERTICAL JOINT |  | RING STYLE | CONCENTRIC |  | RADIAL WALL THICKNESS | 0.2500 INCHES NOMINAL |  | OVERALL WIDTH | 0.5000 INCHES NOMINAL |  | STANDARD BORE DIAMETER | 5.000 INCHES | 
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