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 |
|---|---|---|---|---|---|---|---|---|
| J8-991P | 99121 | A | 3 | 2 | 5 | KE | ||
| ST7M342-19 | 76301 | A | E | 8 | 1 | KE | ||
| J3-1040 | 99121 | A | E | 8 | 5 | KE | ||
| ST7M342C19P | 76301 | A | 5 | 2 | 1 | KE |
CAGE Information
| Code | Company |
|---|---|
| 76301 | BOEING COMPANY THE DBA BOEING |
| 99121 | PRECISION RINGS INCORPORATED |
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 |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | PLAIN RECTANGULAR, STRAIGHT FACE |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| ACXJ | OVERALL WIDTH | 0.0900 INCHES MINIMUM AND 0.0910 INCHES MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5617 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| ADTE | JOINT STYLE | VERTICAL JOINT |
| ACXZ | STANDARD BORE DIAMETER | 0.893 INCHES |
| ACXF | RADIAL WALL THICKNESS | 0.0450 INCHES NOMINAL |
Similar Parts
ST7M342-19 ,
ST7M34219 ,
2805-01-161-8213 ,
2805011618213 ,
011618213
,
J8-991P ,
ST7M342-19 ,
J3-1040 ,
ST7M342C19P ,