National Item Identification Number
01-185-4178
011854178
3040-01-185-4178
3040011854178
National Stock Number
Item Name
RING,PISTON
Federal Supply Class
3040
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)
59364
99193
Reference Numbers (Part Numbers)
859989-11
859989-11
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
TEST DATA DOCUMENT
CRITICALITY
Required Description
ALUMINUM ALLOY 6061 OVERALL
QQ-A-200/8 FED SPEC 1ST MATERIAL RESPONSE AND
QQ-A