National Item Identification Number

00-142-0172
001420172
4310-00-142-0172
4310001420172

National Stock Number

Item Name

RING,PISTON

Federal Supply Class

4310

Description

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.

Commercial and Government Entity Code (Supplier Data)

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23411

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LADD ASSOCIATES INC
DBA LADD AND ASSOCIATES
1304 EAST ST STE 212
REDDING
CA
96001
530-241-6102

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82722

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WABTEC TRANSPORTATION TECHNOLOGIES
CORP
1001 AIR BRAKE AVE
WILMERDING
PA
15148
412-825-1666

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Reference Numbers (Part Numbers)

502542
502542

Required Categories

MATERIAL
CROSS-SECTIONAL SHAPE STYLE
JOINT STYLE
RING STYLE
RADIAL WALL THIC

Required Description

IRON OVERALL
A1 PLAIN RECTANGULAR, STRAIGHT FACE
1 VERTICAL JOINT
1 CONCENTRI