Part Details | OBSERVATION WINDOW
9340-00-273-1820 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: 18920PC3, 345423PC25, 1025469, 9340-00-273-1820, 00-273-1820, 9340002731820, 002731820
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 93 | JAN 01, 1963 | 00-273-1820 | 16880 ( WINDOW, OBSERVATION ) |
REFERENCE DRAWINGS & PICTURES
CIRCULAR
Cross Reference | NSN 9340-00-273-1820
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 18920PC3 | 01425 | LOUIS ALLIS CO THETHIS COMPANY HAS GONE BANKRUPT AND |
| 345423PC25 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| 1025469 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 9340-00-273-1820
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | CIRCULAR |
| OVERALL DIAMETER | 3.610 INCHES MINIMUM AND 3.640 INCHES MAXIMUM |
| OVERALL THICKNESS | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-3787,CLASS 1,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE |
| SURFACE FINISH | POLISHED |
| MATERIAL TRANSPARENCY | CLEAR |