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 |
|---|---|
| 09257 | TRELLEBORG SEALING SOLUTIONS US INC. |
Federal Supply Class
Title
GASOLINE RECIPROCATING ENGINES,
Inclusions:
INCLUDES GAS RECIPROCATING ENGINES; ALL GASOLINE RECIPROCATING ENGINES EXCEPT AIRCRAFT PRIME MOVING.
Exclusions:
EXCLUDES ENGINE ACCESSORIES (FSC 2990).
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| ACXD | RING STYLE | CONCENTRIC |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ZZ-53,FSCM 97820 MFR REF SINGLE MATERIAL RESPONSE TOP |
| ACXL | PIN HOLE STYLE | ROUND PINHOLE LEFT OF JOINT |
| ACXJ | OVERALL WIDTH | 0.0600 INCHES NOMINAL |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | PLAIN RECTANGULAR, STRAIGHT FACE, W/EXPANDER |
| MATT | MATERIAL | STEEL COMP 301 EXPANDER |
| ACXU | PINHOLE DIAMETER | 0.126 INCHES NOMINAL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD SINGLE MATERIAL RESPONSE EXPANDER |
| MATT | MATERIAL | PLASTIC TOP |
| ACXZ | STANDARD BORE DIAMETER | 1.370 INCHES |
| ACXF | RADIAL WALL THICKNESS | 0.1250 INCHES NOMINAL |
| ACXR | RING WIDTH PIN HOLE DEPTH | 0.063 INCHES NOMINAL |
| ACXS | DISTANCE FROM PIN HOLE CENTERLINE TO RING JOINT CENTERLINE | 0.685 INCHES NOMINAL |