NSN 9340-00-489-9491
Part Details | OBSERVATION WINDOW
9340-00-489-9491 A transparent item of a predetermined size that permits unobstructed and undistorted view of a desired area. It may include a frame, have reference markings, grid lines and may be heat strengthened and/or tinted. It is generally used where safety, security, and/or the restriction of foreign matter are required, such as the visual examination of the inside of pressurized tanks, liquid sights, controlled liquid flow, and inspection of equipment enclosed in a housing. See WINDOW (as modified); SCALE, CATHODE RAY TUBE; SCALE, PLOTTING; WINDOW, METAL; WINDOW, WOOD; and WINDOW PANEL, AIRCRAFT.
Alternate Parts: 311172, 311172, 311172, 9340-00-489-9491, 00-489-9491, 9340004899491, 004899491
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 93 | SEP 17, 1969 | 00-489-9491 | 16880 ( WINDOW, OBSERVATION ) |
REFERENCE DRAWINGS & PICTURES
SQUARE CORNERS
Cross Reference | NSN 9340-00-489-9491
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 311172 | 64959 | AMERICAN TELEPHONE AND TELEGRAPH CO |
| 311172 | 3B4M0 | LUCENT TECHNOLOGIES INCCORPORATE HEADQUARTERS |
| 311172 | 06KW9 | LUCENT TECHNOLOGIES INCDBA FEDERAL MARKETING GROUP |
Technical Data | NSN 9340-00-489-9491
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | SQUARE CORNERS |
| OVERALL LENGTH | 10.250 INCHES NOMINAL |
| OVERALL WIDTH | 8.031 INCHES NOMINAL |
| OVERALL THICKNESS | 0.156 INCHES NOMINAL |
| MATERIAL | MICA |
| MATERIAL TRANSPARENCY | CLEAR |
| EDGE TYPE | FLAT UNFINISHED |
| INSULATING AIR SPACE MATERIAL ARRANGEMENT | PLASTIC TO PLASTIC |
| FSC APPLICATION DATA | TELETYPE AND FACSIMILE EQUIPMENT |
