Part Number
Part Number:
NSN:
NIIN:
Item Name:
RING , PISTON
Definition:
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.
CAGE Information
| Code | Company |
|---|---|
| 99121 | PRECISION RINGS INCORPORATED |
Federal Supply Class
Title
MISCELLANEOUS POWER TRANSMISSION
Inclusions:
INCLUDES SHAFTS AND SHAFTING; COLLARS; GEARSHAFTS; BALL JOINTS; ACTUATING CYLINDERS.
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| ACXD | RING STYLE | CONCENTRIC |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-C-320,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| ADTE | JOINT STYLE | VERTICAL/DIAGONAL JOINT |
| ACXJ | OVERALL WIDTH | 0.0440 INCHES NOMINAL |
| AGAV | END ITEM IDENTIFICATION | F-15 AIRCRAFT |
| SFTT | SURFACE TREATMENT | CHROMIUM OVERALL |
| ACXF | RADIAL WALL THICKNESS | 0.0440 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | 0.8450 IN. OD |