National Item Identification Number
01-257-8051
012578051
4310-01-257-8051
4310012578051
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)
04804
NORTHROP GRUMMAN SYSTEMS CORP
ES POWER CONTROL SYSTEMS - MS8910
7301 SYKESVILLE RD
SYKESVILLE
MD
21784
410-552-2455
Reference Numbers (Part Numbers)
927D847GR3
Required Categories
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS
CRITICALITY CODE JUSTIFICATION
Required Description
MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALI