4310-00-131-2983 RING,PISTON Index 4310-00-131-2990 RING,PISTON

National Stock Number:
4310-00-131-2985

Federal Supply Class:
4310

National Item Identification Number:
001312985

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.


Techincal Specification:
BORE DIAMETER OVERSIZE0.010 INCHES
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, TWO PIECE, STRAIGHT FACE, W/RESTRAINER
FSC APPLICATION DATASTEAM PISTON,DIRECT ACTING RECIPROCATING PUMP
JOINT STYLEVERTICAL JOINT
OVERALL WIDTH0.8690 INCHES MINIMUM AND 0.8720 INCHES MAXIMUM
MATERIALCOPPER BOTTOM
MATERIALIRON TOP
RADIAL WALL THICKNESS0.4750 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM
RING STYLECONCENTRIC
STANDARD BORE DIAMETER16.000 INCHES


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