National Stock Number (NSN) Output Data
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.
Reference/Part Number
| Part Number | CAGE | Status | RNCC | RNVC | DAC | RNAAC | MSDS | SADC |
|---|---|---|---|---|---|---|---|---|
| 79821P2W | 77445 | A | 5 | 9 | 2 | SB | ||
| 188447 | 77445 | A | 5 | 9 | 5 | SB | ||
| 79821P2W | 00198 | A | 3 | 2 | 2 | SB |
CAGE Information
| Code | Company |
|---|---|
| 00198 | PRATT AND WHITNEY CANADA INC WHITNEY |
| 77445 | UNITED TECHNOLOGIES CORPORATION DBA |
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| ACXD | RING STYLE | CONCENTRIC |
| ACXD | RING STYLE | CONCENTRIC |
| ACXZ | STANDARD BORE DIAMETER | 5.750 INCHES |
| ZZZV | FSC APPLICATION DATA | RECIPROCATING AIRCRAFT ENGINE |
| ACXF | RADIAL WALL THICKNESS | 0.1950 INCHES MINIMUM AND 0.2050 INCHES MAXIMUM |
| ACXJ | OVERALL WIDTH | 0.1265 INCHES MINIMUM AND 0.1275 INCHES MAXIMUM |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | PLAIN KEYSTONE, STRAIGHT FACE |
| MATT | MATERIAL | IRON OVERALL |