National Item Identification Number
01-273-5744
012735744
2520-01-273-5744
2520012735744
National Stock Number
Item Name
RING,PISTON
Federal Supply Class
2520
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)
11083
Reference Numbers (Part Numbers)
1S5561
Required Categories
BORE DIAMETER OVERSIZE
III END ITEM IDENTIFICATION
Required Description
0.015 INCHES
CATERPILLAR TRACTOR MODEL D8K-8A